2016-11-19 09:28:01 +00:00
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#include "graphics/graphics.h"
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2016-11-27 10:06:47 +00:00
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#include "loaders/texture.h"
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2017-02-07 09:13:39 +00:00
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#include "loaders/font.h"
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2017-04-13 02:48:17 +00:00
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#include "event/event.h"
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2017-06-10 22:34:35 +00:00
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#include "filesystem/filesystem.h"
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2017-01-21 03:55:54 +00:00
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#include "math/mat4.h"
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#include "math/vec3.h"
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2016-11-19 09:28:01 +00:00
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#include "util.h"
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2016-09-27 07:24:28 +00:00
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#define _USE_MATH_DEFINES
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2016-07-16 05:39:17 +00:00
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#include <stdlib.h>
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2017-04-16 23:56:49 +00:00
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#include <stdio.h>
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2016-09-27 07:24:28 +00:00
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#include <math.h>
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2016-09-14 00:02:23 +00:00
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2016-09-27 06:48:09 +00:00
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static GraphicsState state;
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2016-07-07 07:04:24 +00:00
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2017-04-13 02:48:17 +00:00
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static void onCloseWindow(GLFWwindow* window) {
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if (window == state.window) {
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EventType type = EVENT_QUIT;
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EventData data = { .quit = { 0 } };
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Event event = { .type = type, .data = data };
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lovrEventPush(event);
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}
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}
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2016-11-23 05:16:13 +00:00
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// Base
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2016-08-10 06:28:17 +00:00
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void lovrGraphicsInit() {
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2017-06-18 04:09:03 +00:00
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#ifdef LOVR_WEB
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2017-04-16 23:56:49 +00:00
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glfwWindowHint(GLFW_CLIENT_API, GLFW_OPENGL_ES_API);
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2017-06-18 04:09:03 +00:00
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glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
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glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
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2017-04-16 23:56:49 +00:00
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#else
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2017-04-13 02:48:17 +00:00
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glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
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glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
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glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
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glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
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glfwWindowHint(GLFW_SAMPLES, 4);
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2017-06-02 06:52:37 +00:00
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glfwWindowHint(GLFW_RESIZABLE, GL_FALSE);
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2017-04-16 23:56:49 +00:00
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#endif
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2017-04-13 02:48:17 +00:00
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2017-06-10 23:25:46 +00:00
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// Create window
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2017-06-10 22:34:35 +00:00
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const char* title = lovrFilesystemGetIdentity();
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2017-06-10 23:25:46 +00:00
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state.window = glfwCreateWindow(800, 600, title ? title : "LÖVR", NULL, NULL);
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2017-04-13 02:48:17 +00:00
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if (!state.window) {
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glfwTerminate();
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error("Could not create window");
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}
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2017-06-10 23:25:46 +00:00
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// Initialize all the things
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2017-04-13 02:48:17 +00:00
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glfwMakeContextCurrent(state.window);
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glfwSetWindowCloseCallback(state.window, onCloseWindow);
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2017-06-24 02:35:49 +00:00
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#ifdef _WIN32
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gladLoadGLLoader((GLADloadproc) glfwGetProcAddress);
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#endif
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2017-04-13 02:48:17 +00:00
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glfwSetTime(0);
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glEnable(GL_BLEND);
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glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
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2017-07-14 15:18:25 +00:00
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glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
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2017-06-18 04:09:03 +00:00
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#ifndef LOVR_WEB
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glfwSwapInterval(0);
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glEnable(GL_LINE_SMOOTH);
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#endif
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2017-04-16 23:56:49 +00:00
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2017-03-31 11:22:18 +00:00
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// Allocations
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state.activeFont = NULL;
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state.defaultFont = NULL;
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state.activeTexture = NULL;
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glGenBuffers(1, &state.shapeBuffer);
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glGenBuffers(1, &state.shapeIndexBuffer);
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2017-06-18 04:09:03 +00:00
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glGenVertexArrays(1, &state.shapeArray);
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2017-03-31 11:22:18 +00:00
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vec_init(&state.shapeData);
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vec_init(&state.shapeIndices);
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2017-01-12 04:26:08 +00:00
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for (int i = 0; i < MAX_CANVASES; i++) {
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state.canvases[i] = malloc(sizeof(CanvasState));
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}
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2017-03-31 11:22:18 +00:00
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// Objects
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2016-10-04 04:54:27 +00:00
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state.defaultShader = lovrShaderCreate(lovrDefaultVertexShader, lovrDefaultFragmentShader);
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2016-10-24 22:02:23 +00:00
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state.skyboxShader = lovrShaderCreate(lovrSkyboxVertexShader, lovrSkyboxFragmentShader);
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2016-11-27 02:58:58 +00:00
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int uniformId = lovrShaderGetUniformId(state.skyboxShader, "cube");
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lovrShaderSendInt(state.skyboxShader, uniformId, 1);
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2017-03-31 01:48:03 +00:00
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state.fullscreenShader = lovrShaderCreate(lovrNoopVertexShader, lovrDefaultFragmentShader);
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2017-02-03 23:16:30 +00:00
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state.defaultTexture = lovrTextureCreate(lovrTextureDataGetBlank(1, 1, 0xff, FORMAT_RGBA));
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2017-03-31 11:22:18 +00:00
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// System Limits
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2017-06-10 23:25:46 +00:00
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glGetIntegerv(GL_MAX_TEXTURE_SIZE, &state.maxTextureSize);
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2017-06-18 04:09:03 +00:00
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#ifdef LOVR_WEB
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state.maxPointSize = 1.f;
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state.maxTextureMSAA = 1;
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#else
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float pointSizes[2];
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glGetFloatv(GL_POINT_SIZE_RANGE, pointSizes);
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state.maxPointSize = pointSizes[1];
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glGetIntegerv(GL_MAX_SAMPLES, &state.maxTextureMSAA);
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#endif
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2017-04-16 23:56:49 +00:00
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2017-03-31 11:22:18 +00:00
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// State
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2016-11-24 23:45:59 +00:00
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state.depthTest = -1;
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2016-09-28 03:20:08 +00:00
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lovrGraphicsReset();
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2017-01-22 02:18:12 +00:00
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atexit(lovrGraphicsDestroy);
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2016-09-28 03:20:08 +00:00
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}
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2016-10-04 22:13:57 +00:00
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void lovrGraphicsDestroy() {
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2017-02-10 11:24:13 +00:00
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lovrGraphicsSetFont(NULL);
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2016-11-19 22:06:41 +00:00
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lovrGraphicsSetShader(NULL);
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glUseProgram(0);
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2017-01-12 04:26:08 +00:00
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for (int i = 0; i < MAX_CANVASES; i++) {
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free(state.canvases[i]);
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}
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2017-02-10 11:24:13 +00:00
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if (state.defaultFont) {
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lovrRelease(&state.defaultFont->ref);
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}
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2016-11-19 22:06:41 +00:00
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lovrRelease(&state.defaultShader->ref);
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lovrRelease(&state.skyboxShader->ref);
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2017-01-13 09:59:00 +00:00
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lovrRelease(&state.fullscreenShader->ref);
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2016-11-27 02:58:58 +00:00
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lovrRelease(&state.defaultTexture->ref);
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2016-10-04 22:13:57 +00:00
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glDeleteBuffers(1, &state.shapeBuffer);
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glDeleteBuffers(1, &state.shapeIndexBuffer);
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2017-06-18 04:09:03 +00:00
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glDeleteVertexArrays(1, &state.shapeArray);
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2016-10-04 22:13:57 +00:00
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vec_deinit(&state.shapeData);
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vec_deinit(&state.shapeIndices);
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}
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2016-09-28 03:20:08 +00:00
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void lovrGraphicsReset() {
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2016-11-27 18:57:36 +00:00
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state.transform = 0;
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2017-01-11 17:22:18 +00:00
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state.canvas = 0;
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2017-01-12 04:26:08 +00:00
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lovrGraphicsSetViewport(0, 0, lovrGraphicsGetWidth(), lovrGraphicsGetHeight());
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2017-03-12 05:19:26 +00:00
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lovrGraphicsSetPerspective(.1f, 100.f, 67 * M_PI / 180);
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2016-11-27 10:06:47 +00:00
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lovrGraphicsSetShader(NULL);
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lovrGraphicsBindTexture(NULL);
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2017-04-29 20:33:45 +00:00
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lovrGraphicsSetBackgroundColor(0, 0, 0, 255);
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2017-04-01 22:33:32 +00:00
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lovrGraphicsSetBlendMode(BLEND_ALPHA, BLEND_ALPHA_MULTIPLY);
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2016-09-29 03:11:58 +00:00
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lovrGraphicsSetColor(255, 255, 255, 255);
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2016-09-28 04:32:57 +00:00
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lovrGraphicsSetColorMask(1, 1, 1, 1);
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2016-09-29 04:47:36 +00:00
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lovrGraphicsSetScissorEnabled(0);
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2016-10-01 20:48:31 +00:00
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lovrGraphicsSetLineWidth(1);
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2016-11-13 01:38:49 +00:00
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lovrGraphicsSetPointSize(1);
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2016-10-03 19:02:49 +00:00
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lovrGraphicsSetCullingEnabled(0);
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lovrGraphicsSetPolygonWinding(POLYGON_WINDING_COUNTERCLOCKWISE);
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2016-11-23 04:59:11 +00:00
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lovrGraphicsSetDepthTest(COMPARE_LESS);
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2016-11-23 05:07:33 +00:00
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lovrGraphicsSetWireframe(0);
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2017-02-18 23:29:32 +00:00
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lovrGraphicsOrigin();
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2016-08-10 06:28:17 +00:00
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}
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2016-07-07 07:04:24 +00:00
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2016-09-17 03:11:11 +00:00
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void lovrGraphicsClear(int color, int depth) {
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int bits = 0;
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if (color) {
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bits |= GL_COLOR_BUFFER_BIT;
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}
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if (depth) {
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bits |= GL_DEPTH_BUFFER_BIT;
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}
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2017-05-17 05:43:47 +00:00
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if (bits != 0) {
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glClear(bits);
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}
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2016-07-07 07:04:24 +00:00
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}
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2016-08-10 06:28:17 +00:00
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void lovrGraphicsPresent() {
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2017-04-13 02:48:17 +00:00
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glfwSwapBuffers(state.window);
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2016-07-07 07:04:24 +00:00
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}
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2016-09-24 03:58:56 +00:00
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void lovrGraphicsPrepare() {
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Shader* shader = lovrGraphicsGetShader();
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2017-01-11 17:22:18 +00:00
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mat4 transform = state.transforms[state.transform];
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2017-01-12 04:26:08 +00:00
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mat4 projection = state.canvases[state.canvas]->projection;
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2017-01-11 17:22:18 +00:00
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lovrShaderBind(shader, transform, projection, state.color, 0);
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2016-09-24 03:58:56 +00:00
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}
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2016-11-23 05:16:13 +00:00
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// State
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2016-09-28 04:37:46 +00:00
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void lovrGraphicsGetBackgroundColor(float* r, float* g, float* b, float* a) {
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2016-07-28 02:48:59 +00:00
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GLfloat clearColor[4];
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glGetFloatv(GL_COLOR_CLEAR_VALUE, clearColor);
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2016-08-10 06:28:17 +00:00
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*r = clearColor[0];
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*g = clearColor[1];
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*b = clearColor[2];
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*a = clearColor[3];
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2016-07-28 02:48:59 +00:00
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}
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2016-09-28 04:37:46 +00:00
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void lovrGraphicsSetBackgroundColor(float r, float g, float b, float a) {
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2016-08-08 20:51:22 +00:00
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glClearColor(r / 255, g / 255, b / 255, a / 255);
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2016-07-28 02:48:59 +00:00
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}
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2017-03-12 11:03:36 +00:00
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void lovrGraphicsGetBlendMode(BlendMode* mode, BlendAlphaMode* alphaMode) {
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*mode = state.blendMode;
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*alphaMode = state.blendAlphaMode;
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}
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void lovrGraphicsSetBlendMode(BlendMode mode, BlendAlphaMode alphaMode) {
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GLenum srcRGB = mode == BLEND_MULTIPLY ? GL_DST_COLOR : GL_ONE;
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if (srcRGB == GL_ONE && alphaMode == BLEND_ALPHA_MULTIPLY) {
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srcRGB = GL_SRC_ALPHA;
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}
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switch (mode) {
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case BLEND_ALPHA:
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glBlendEquation(GL_FUNC_ADD);
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glBlendFuncSeparate(srcRGB, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
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break;
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case BLEND_ADD:
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glBlendEquation(GL_FUNC_ADD);
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glBlendFuncSeparate(srcRGB, GL_ONE, GL_ZERO, GL_ONE);
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break;
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case BLEND_SUBTRACT:
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glBlendEquation(GL_FUNC_REVERSE_SUBTRACT);
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glBlendFuncSeparate(srcRGB, GL_ONE, GL_ZERO, GL_ONE);
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break;
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case BLEND_MULTIPLY:
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glBlendEquation(GL_FUNC_ADD);
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glBlendFuncSeparate(srcRGB, GL_ZERO, GL_DST_COLOR, GL_ZERO);
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break;
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case BLEND_LIGHTEN:
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2017-06-18 04:09:03 +00:00
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glBlendEquation(GL_MAX);
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glBlendFuncSeparate(srcRGB, GL_ZERO, GL_ONE, GL_ZERO);
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2017-03-12 11:03:36 +00:00
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break;
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case BLEND_DARKEN:
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2017-06-18 04:09:03 +00:00
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glBlendEquation(GL_MIN);
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glBlendFuncSeparate(srcRGB, GL_ZERO, GL_ONE, GL_ZERO);
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2017-03-12 11:03:36 +00:00
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break;
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case BLEND_SCREEN:
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glBlendEquation(GL_FUNC_ADD);
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glBlendFuncSeparate(srcRGB, GL_ONE_MINUS_SRC_COLOR, GL_ONE, GL_ONE_MINUS_SRC_COLOR);
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break;
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case BLEND_REPLACE:
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glBlendEquation(GL_FUNC_ADD);
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glBlendFuncSeparate(srcRGB, GL_ZERO, GL_ONE, GL_ZERO);
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break;
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}
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}
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2016-09-29 03:11:58 +00:00
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void lovrGraphicsGetColor(unsigned char* r, unsigned char* g, unsigned char* b, unsigned char* a) {
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*r = LOVR_COLOR_R(state.color);
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*g = LOVR_COLOR_G(state.color);
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*b = LOVR_COLOR_B(state.color);
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*a = LOVR_COLOR_A(state.color);
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}
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void lovrGraphicsSetColor(unsigned char r, unsigned char g, unsigned char b, unsigned char a) {
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state.color = LOVR_COLOR(r, g, b, a);
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}
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2016-10-03 18:41:31 +00:00
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void lovrGraphicsGetColorMask(char* r, char* g, char* b, char* a) {
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char mask = state.colorMask;
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2016-09-28 04:32:57 +00:00
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*r = mask & 0x1;
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*g = mask & 0x2;
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*b = mask & 0x4;
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*a = mask & 0x8;
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}
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2016-10-03 18:41:31 +00:00
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void lovrGraphicsSetColorMask(char r, char g, char b, char a) {
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2016-09-28 04:32:57 +00:00
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state.colorMask = ((r & 1) << 0) | ((g & 1) << 1) | ((b & 1) << 2) | ((a & 1) << 3);
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glColorMask(r, g, b, a);
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}
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2016-11-23 05:07:33 +00:00
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int lovrGraphicsIsScissorEnabled() {
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2016-09-29 04:47:36 +00:00
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return state.isScissorEnabled;
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}
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2016-11-23 05:07:33 +00:00
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void lovrGraphicsSetScissorEnabled(int isEnabled) {
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2016-09-29 04:47:36 +00:00
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state.isScissorEnabled = isEnabled;
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if (isEnabled) {
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glEnable(GL_SCISSOR_TEST);
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} else {
|
|
|
|
glDisable(GL_SCISSOR_TEST);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void lovrGraphicsGetScissor(int* x, int* y, int* width, int* height) {
|
|
|
|
*x = state.scissor.x;
|
|
|
|
*y = state.scissor.x;
|
|
|
|
*width = state.scissor.width;
|
|
|
|
*height = state.scissor.height;
|
|
|
|
}
|
|
|
|
|
|
|
|
void lovrGraphicsSetScissor(int x, int y, int width, int height) {
|
|
|
|
int windowWidth, windowHeight;
|
2017-04-13 02:48:17 +00:00
|
|
|
glfwGetFramebufferSize(state.window, &windowWidth, &windowHeight);
|
2016-09-29 04:47:36 +00:00
|
|
|
state.scissor.x = x;
|
|
|
|
state.scissor.x = y;
|
|
|
|
state.scissor.width = width;
|
|
|
|
state.scissor.height = height;
|
|
|
|
glScissor(x, windowHeight - y, width, height);
|
|
|
|
}
|
|
|
|
|
2016-09-14 00:02:23 +00:00
|
|
|
Shader* lovrGraphicsGetShader() {
|
2016-09-27 06:48:09 +00:00
|
|
|
return state.activeShader;
|
2016-09-14 00:02:23 +00:00
|
|
|
}
|
|
|
|
|
2016-08-10 06:28:17 +00:00
|
|
|
void lovrGraphicsSetShader(Shader* shader) {
|
2016-09-28 02:56:36 +00:00
|
|
|
if (!shader) {
|
|
|
|
shader = state.defaultShader;
|
|
|
|
}
|
|
|
|
|
2016-11-19 22:06:41 +00:00
|
|
|
if (shader != state.activeShader) {
|
|
|
|
if (state.activeShader) {
|
|
|
|
lovrRelease(&state.activeShader->ref);
|
|
|
|
}
|
|
|
|
|
|
|
|
state.activeShader = shader;
|
|
|
|
lovrRetain(&state.activeShader->ref);
|
|
|
|
}
|
2016-07-16 02:17:27 +00:00
|
|
|
}
|
|
|
|
|
2017-02-07 09:13:39 +00:00
|
|
|
void lovrGraphicsEnsureFont() {
|
|
|
|
if (!state.activeFont && !state.defaultFont) {
|
2017-04-02 12:55:21 +00:00
|
|
|
FontData* fontData = lovrFontDataCreate(NULL, 32);
|
2017-02-07 09:13:39 +00:00
|
|
|
state.defaultFont = lovrFontCreate(fontData);
|
2017-02-10 11:24:13 +00:00
|
|
|
lovrGraphicsSetFont(state.defaultFont);
|
2017-02-07 09:13:39 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2017-02-03 23:16:30 +00:00
|
|
|
Font* lovrGraphicsGetFont() {
|
2017-02-07 09:13:39 +00:00
|
|
|
lovrGraphicsEnsureFont();
|
2017-02-03 23:16:30 +00:00
|
|
|
return state.activeFont;
|
|
|
|
}
|
|
|
|
|
|
|
|
void lovrGraphicsSetFont(Font* font) {
|
2017-02-10 11:24:13 +00:00
|
|
|
if (state.activeFont) {
|
|
|
|
lovrRelease(&state.activeFont->ref);
|
|
|
|
}
|
|
|
|
|
2017-02-03 23:16:30 +00:00
|
|
|
state.activeFont = font;
|
2017-02-10 11:24:13 +00:00
|
|
|
|
|
|
|
if (font) {
|
|
|
|
lovrRetain(&state.activeFont->ref);
|
|
|
|
}
|
2017-02-03 23:16:30 +00:00
|
|
|
}
|
|
|
|
|
2017-02-17 08:48:43 +00:00
|
|
|
Texture* lovrGraphicsGetTexture() {
|
|
|
|
return state.activeTexture;
|
|
|
|
}
|
|
|
|
|
2016-11-27 10:06:47 +00:00
|
|
|
void lovrGraphicsBindTexture(Texture* texture) {
|
2016-11-27 02:58:58 +00:00
|
|
|
if (!texture) {
|
|
|
|
texture = state.defaultTexture;
|
|
|
|
}
|
|
|
|
|
2017-02-06 04:30:17 +00:00
|
|
|
if (texture != state.activeTexture) {
|
|
|
|
state.activeTexture = texture;
|
|
|
|
glBindTexture(GL_TEXTURE_2D, texture->id);
|
|
|
|
}
|
2016-11-27 02:58:58 +00:00
|
|
|
}
|
|
|
|
|
2017-01-12 09:26:44 +00:00
|
|
|
mat4 lovrGraphicsGetProjection() {
|
|
|
|
return state.canvases[state.canvas]->projection;
|
|
|
|
}
|
|
|
|
|
2017-03-12 05:19:26 +00:00
|
|
|
void lovrGraphicsSetProjection(mat4 projection) {
|
|
|
|
memcpy(state.canvases[state.canvas]->projection, projection, 16 * sizeof(float));
|
|
|
|
}
|
|
|
|
|
|
|
|
void lovrGraphicsSetPerspective(float near, float far, float fov) {
|
2016-09-27 06:48:09 +00:00
|
|
|
int width, height;
|
2017-04-13 02:48:17 +00:00
|
|
|
glfwGetWindowSize(state.window, &width, &height);
|
2017-01-18 08:51:09 +00:00
|
|
|
mat4_perspective(state.canvases[state.canvas]->projection, near, far, fov, (float) width / height);
|
2017-01-12 04:26:08 +00:00
|
|
|
}
|
|
|
|
|
2016-10-01 20:48:31 +00:00
|
|
|
float lovrGraphicsGetLineWidth() {
|
|
|
|
return state.lineWidth;
|
|
|
|
}
|
|
|
|
|
|
|
|
void lovrGraphicsSetLineWidth(float width) {
|
|
|
|
state.lineWidth = width;
|
|
|
|
glLineWidth(width);
|
|
|
|
}
|
|
|
|
|
2016-11-13 01:38:49 +00:00
|
|
|
float lovrGraphicsGetPointSize() {
|
|
|
|
return state.pointSize;
|
|
|
|
}
|
|
|
|
|
|
|
|
void lovrGraphicsSetPointSize(float size) {
|
2017-06-18 04:09:03 +00:00
|
|
|
#ifndef LOVR_WEB
|
|
|
|
state.pointSize = size;
|
|
|
|
glPointSize(size);
|
|
|
|
#endif
|
2016-11-13 01:38:49 +00:00
|
|
|
}
|
|
|
|
|
2016-11-23 05:07:33 +00:00
|
|
|
int lovrGraphicsIsCullingEnabled() {
|
2016-10-03 19:02:49 +00:00
|
|
|
return state.isCullingEnabled;
|
|
|
|
}
|
|
|
|
|
2016-11-23 05:07:33 +00:00
|
|
|
void lovrGraphicsSetCullingEnabled(int isEnabled) {
|
2016-10-03 19:02:49 +00:00
|
|
|
state.isCullingEnabled = isEnabled;
|
|
|
|
if (isEnabled) {
|
|
|
|
glEnable(GL_CULL_FACE);
|
|
|
|
} else {
|
|
|
|
glDisable(GL_CULL_FACE);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
PolygonWinding lovrGraphicsGetPolygonWinding() {
|
|
|
|
return state.polygonWinding;
|
|
|
|
}
|
|
|
|
|
|
|
|
void lovrGraphicsSetPolygonWinding(PolygonWinding winding) {
|
|
|
|
state.polygonWinding = winding;
|
|
|
|
glFrontFace(winding);
|
|
|
|
}
|
|
|
|
|
2016-11-23 04:59:11 +00:00
|
|
|
CompareMode lovrGraphicsGetDepthTest() {
|
|
|
|
return state.depthTest;
|
|
|
|
}
|
|
|
|
|
|
|
|
void lovrGraphicsSetDepthTest(CompareMode depthTest) {
|
|
|
|
if (state.depthTest != depthTest) {
|
|
|
|
state.depthTest = depthTest;
|
|
|
|
glDepthFunc(depthTest);
|
2016-11-24 23:45:59 +00:00
|
|
|
if (depthTest) {
|
|
|
|
glEnable(GL_DEPTH_TEST);
|
|
|
|
} else {
|
|
|
|
glDisable(GL_DEPTH_TEST);
|
|
|
|
}
|
2016-11-23 04:59:11 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2016-11-23 05:07:33 +00:00
|
|
|
int lovrGraphicsIsWireframe() {
|
|
|
|
return state.isWireframe;
|
|
|
|
}
|
|
|
|
|
|
|
|
void lovrGraphicsSetWireframe(int wireframe) {
|
2017-06-18 04:09:03 +00:00
|
|
|
#ifndef LOVR_WEB
|
|
|
|
if (state.isWireframe != wireframe) {
|
2016-11-23 05:07:33 +00:00
|
|
|
state.isWireframe = wireframe;
|
|
|
|
glPolygonMode(GL_FRONT_AND_BACK, wireframe ? GL_LINE : GL_FILL);
|
|
|
|
}
|
2017-06-18 04:09:03 +00:00
|
|
|
#endif
|
2016-11-23 05:07:33 +00:00
|
|
|
}
|
|
|
|
|
2016-11-23 05:16:13 +00:00
|
|
|
int lovrGraphicsGetWidth() {
|
2017-04-16 23:56:49 +00:00
|
|
|
int width, height;
|
|
|
|
glfwGetFramebufferSize(state.window, &width, &height);
|
2016-11-23 05:16:13 +00:00
|
|
|
return width;
|
|
|
|
}
|
|
|
|
|
|
|
|
int lovrGraphicsGetHeight() {
|
2017-04-16 23:56:49 +00:00
|
|
|
int width, height;
|
|
|
|
glfwGetFramebufferSize(state.window, &width, &height);
|
2016-11-23 05:16:13 +00:00
|
|
|
return height;
|
|
|
|
}
|
|
|
|
|
2017-03-31 11:22:18 +00:00
|
|
|
float lovrGraphicsGetSystemLimit(GraphicsLimit limit) {
|
|
|
|
switch (limit) {
|
|
|
|
case LIMIT_POINT_SIZE: return state.maxPointSize;
|
|
|
|
case LIMIT_TEXTURE_SIZE: return state.maxTextureSize;
|
|
|
|
case LIMIT_TEXTURE_MSAA: return state.maxTextureMSAA;
|
|
|
|
default: error("Unknown limit %d\n", limit);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2017-01-12 04:26:08 +00:00
|
|
|
void lovrGraphicsPushCanvas() {
|
|
|
|
if (++state.canvas >= MAX_CANVASES) {
|
2017-01-11 17:22:18 +00:00
|
|
|
error("Canvas overflow");
|
|
|
|
}
|
|
|
|
|
2017-01-12 04:26:08 +00:00
|
|
|
memcpy(state.canvases[state.canvas], state.canvases[state.canvas - 1], sizeof(CanvasState));
|
2017-01-11 17:22:18 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
void lovrGraphicsPopCanvas() {
|
|
|
|
if (--state.canvas < 0) {
|
|
|
|
error("Canvas underflow");
|
|
|
|
}
|
|
|
|
|
2017-01-12 04:26:08 +00:00
|
|
|
int* viewport = state.canvases[state.canvas]->viewport;
|
|
|
|
lovrGraphicsSetViewport(viewport[0], viewport[1], viewport[2], viewport[3]);
|
|
|
|
lovrGraphicsBindFramebuffer(state.canvases[state.canvas]->framebuffer);
|
|
|
|
}
|
|
|
|
|
|
|
|
void lovrGraphicsSetViewport(int x, int y, int w, int h) {
|
|
|
|
state.canvases[state.canvas]->viewport[0] = x;
|
|
|
|
state.canvases[state.canvas]->viewport[1] = y;
|
|
|
|
state.canvases[state.canvas]->viewport[2] = w;
|
|
|
|
state.canvases[state.canvas]->viewport[3] = h;
|
|
|
|
glViewport(x, y, w, h);
|
|
|
|
}
|
|
|
|
|
|
|
|
void lovrGraphicsBindFramebuffer(int framebuffer) {
|
|
|
|
state.canvases[state.canvas]->framebuffer = framebuffer;
|
|
|
|
glBindFramebuffer(GL_FRAMEBUFFER, framebuffer);
|
2017-01-11 17:22:18 +00:00
|
|
|
}
|
|
|
|
|
2016-11-23 05:16:13 +00:00
|
|
|
// Transforms
|
|
|
|
|
2016-09-21 07:55:53 +00:00
|
|
|
int lovrGraphicsPush() {
|
2016-11-27 18:57:36 +00:00
|
|
|
if (++state.transform >= MAX_TRANSFORMS) { return 1; }
|
|
|
|
memcpy(state.transforms[state.transform], state.transforms[state.transform - 1], 16 * sizeof(float));
|
2016-09-21 07:55:53 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
int lovrGraphicsPop() {
|
2016-11-27 18:57:36 +00:00
|
|
|
return --state.transform < 0;
|
2016-09-21 07:55:53 +00:00
|
|
|
}
|
|
|
|
|
2016-09-21 22:26:05 +00:00
|
|
|
void lovrGraphicsOrigin() {
|
2017-01-18 08:51:09 +00:00
|
|
|
mat4_identity(state.transforms[state.transform]);
|
2016-09-21 22:26:05 +00:00
|
|
|
}
|
|
|
|
|
2016-09-23 04:53:17 +00:00
|
|
|
void lovrGraphicsTranslate(float x, float y, float z) {
|
2016-11-27 18:57:36 +00:00
|
|
|
mat4_translate(state.transforms[state.transform], x, y, z);
|
2016-09-23 04:53:17 +00:00
|
|
|
}
|
|
|
|
|
2016-12-02 01:32:39 +00:00
|
|
|
void lovrGraphicsRotate(float angle, float ax, float ay, float az) {
|
2017-01-20 02:04:45 +00:00
|
|
|
mat4_rotate(state.transforms[state.transform], angle, ax, ay, az);
|
2016-09-23 04:53:17 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
void lovrGraphicsScale(float x, float y, float z) {
|
2016-11-27 18:57:36 +00:00
|
|
|
mat4_scale(state.transforms[state.transform], x, y, z);
|
2016-09-23 04:53:17 +00:00
|
|
|
}
|
|
|
|
|
2016-11-02 03:48:04 +00:00
|
|
|
void lovrGraphicsMatrixTransform(mat4 transform) {
|
2016-11-27 18:57:36 +00:00
|
|
|
mat4_multiply(state.transforms[state.transform], transform);
|
2016-09-29 07:21:38 +00:00
|
|
|
}
|
|
|
|
|
2016-11-23 05:16:13 +00:00
|
|
|
// Primitives
|
2016-09-29 05:10:03 +00:00
|
|
|
|
2017-02-03 23:16:30 +00:00
|
|
|
void lovrGraphicsSetShapeData(float* data, int length) {
|
|
|
|
vec_clear(&state.shapeData);
|
|
|
|
vec_pusharr(&state.shapeData, data, length);
|
|
|
|
}
|
|
|
|
|
|
|
|
void lovrGraphicsSetIndexData(unsigned int* data, int length) {
|
|
|
|
vec_clear(&state.shapeIndices);
|
|
|
|
vec_pusharr(&state.shapeIndices, data, length);
|
|
|
|
}
|
|
|
|
|
2017-03-12 23:57:27 +00:00
|
|
|
void lovrGraphicsDrawPrimitive(GLenum mode, int hasNormals, int hasTexCoords, int useIndices) {
|
2017-01-13 09:59:00 +00:00
|
|
|
int stride = 3 + (hasNormals ? 3 : 0) + (hasTexCoords ? 2 : 0);
|
|
|
|
int strideBytes = stride * sizeof(float);
|
2016-10-07 06:34:35 +00:00
|
|
|
|
|
|
|
lovrGraphicsPrepare();
|
2017-06-18 04:09:03 +00:00
|
|
|
glBindVertexArray(state.shapeArray);
|
2016-09-29 07:00:02 +00:00
|
|
|
glBindBuffer(GL_ARRAY_BUFFER, state.shapeBuffer);
|
2017-01-13 09:59:00 +00:00
|
|
|
glBufferData(GL_ARRAY_BUFFER, state.shapeData.length * sizeof(float), state.shapeData.data, GL_STREAM_DRAW);
|
|
|
|
glEnableVertexAttribArray(LOVR_SHADER_POSITION);
|
|
|
|
glVertexAttribPointer(LOVR_SHADER_POSITION, 3, GL_FLOAT, GL_FALSE, strideBytes, (void*) 0);
|
2016-09-30 06:18:51 +00:00
|
|
|
|
2017-01-13 09:59:00 +00:00
|
|
|
if (hasNormals) {
|
|
|
|
glEnableVertexAttribArray(LOVR_SHADER_NORMAL);
|
|
|
|
glVertexAttribPointer(LOVR_SHADER_NORMAL, 3, GL_FLOAT, GL_FALSE, strideBytes, (void*) (3 * sizeof(float)));
|
2016-10-07 06:34:35 +00:00
|
|
|
} else {
|
2017-01-13 09:59:00 +00:00
|
|
|
glDisableVertexAttribArray(LOVR_SHADER_NORMAL);
|
2016-09-30 06:18:51 +00:00
|
|
|
}
|
2016-09-29 07:00:02 +00:00
|
|
|
|
2017-01-13 09:59:00 +00:00
|
|
|
if (hasTexCoords) {
|
|
|
|
void* offset = (void*) ((hasNormals ? 6 : 3) * sizeof(float));
|
|
|
|
glEnableVertexAttribArray(LOVR_SHADER_TEX_COORD);
|
|
|
|
glVertexAttribPointer(LOVR_SHADER_TEX_COORD, 2, GL_FLOAT, GL_FALSE, strideBytes, offset);
|
|
|
|
} else {
|
|
|
|
glDisableVertexAttribArray(LOVR_SHADER_TEX_COORD);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (useIndices) {
|
|
|
|
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, state.shapeIndexBuffer);
|
|
|
|
glBufferData(GL_ELEMENT_ARRAY_BUFFER, state.shapeIndices.length * sizeof(unsigned int), state.shapeIndices.data, GL_STREAM_DRAW);
|
|
|
|
glDrawElements(mode, state.shapeIndices.length, GL_UNSIGNED_INT, NULL);
|
|
|
|
} else {
|
|
|
|
glDrawArrays(mode, 0, state.shapeData.length / stride);
|
|
|
|
}
|
2016-10-07 06:34:35 +00:00
|
|
|
|
2017-06-18 04:09:03 +00:00
|
|
|
glBindVertexArray(0);
|
2016-09-30 02:39:25 +00:00
|
|
|
}
|
|
|
|
|
2016-11-08 07:16:33 +00:00
|
|
|
void lovrGraphicsPoints(float* points, int count) {
|
2017-03-12 23:57:27 +00:00
|
|
|
lovrGraphicsBindTexture(NULL);
|
2017-02-03 23:16:30 +00:00
|
|
|
lovrGraphicsSetShapeData(points, count);
|
2017-03-12 23:57:27 +00:00
|
|
|
lovrGraphicsDrawPrimitive(GL_POINTS, 0, 0, 0);
|
2016-11-08 07:16:33 +00:00
|
|
|
}
|
|
|
|
|
2016-09-30 02:39:25 +00:00
|
|
|
void lovrGraphicsLine(float* points, int count) {
|
2017-03-12 23:57:27 +00:00
|
|
|
lovrGraphicsBindTexture(NULL);
|
2017-02-03 23:16:30 +00:00
|
|
|
lovrGraphicsSetShapeData(points, count);
|
2017-03-12 23:57:27 +00:00
|
|
|
lovrGraphicsDrawPrimitive(GL_LINE_STRIP, 0, 0, 0);
|
2016-09-29 07:00:02 +00:00
|
|
|
}
|
|
|
|
|
2016-11-23 04:43:22 +00:00
|
|
|
void lovrGraphicsTriangle(DrawMode mode, float* points) {
|
2017-03-12 23:57:27 +00:00
|
|
|
lovrGraphicsBindTexture(NULL);
|
|
|
|
|
2016-11-23 04:43:22 +00:00
|
|
|
if (mode == DRAW_MODE_LINE) {
|
2017-02-03 23:16:30 +00:00
|
|
|
lovrGraphicsSetShapeData(points, 9);
|
2017-03-12 23:57:27 +00:00
|
|
|
lovrGraphicsDrawPrimitive(GL_LINE_LOOP, 0, 0, 0);
|
2016-11-23 04:43:22 +00:00
|
|
|
} else {
|
2017-01-20 02:50:51 +00:00
|
|
|
float normal[3];
|
|
|
|
vec3_cross(vec3_init(normal, &points[0]), &points[3]);
|
2016-11-23 04:43:22 +00:00
|
|
|
|
|
|
|
float data[18] = {
|
2017-01-20 02:50:51 +00:00
|
|
|
points[0], points[1], points[2], normal[0], normal[1], normal[2],
|
|
|
|
points[3], points[4], points[5], normal[0], normal[1], normal[2],
|
|
|
|
points[6], points[7], points[8], normal[0], normal[1], normal[2]
|
2016-11-23 04:43:22 +00:00
|
|
|
};
|
|
|
|
|
2017-02-03 23:16:30 +00:00
|
|
|
lovrGraphicsSetShapeData(data, 18);
|
2017-03-12 23:57:27 +00:00
|
|
|
lovrGraphicsDrawPrimitive(GL_TRIANGLE_STRIP, 1, 0, 0);
|
2016-11-23 04:43:22 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2017-07-18 20:07:18 +00:00
|
|
|
void lovrGraphicsPlane(DrawMode mode, Texture* texture, mat4 transform) {
|
2016-10-04 03:56:45 +00:00
|
|
|
lovrGraphicsPush();
|
2017-01-21 04:43:00 +00:00
|
|
|
lovrGraphicsMatrixTransform(transform);
|
2016-10-04 03:56:45 +00:00
|
|
|
|
|
|
|
if (mode == DRAW_MODE_LINE) {
|
2016-10-07 06:34:35 +00:00
|
|
|
float points[] = {
|
|
|
|
-.5, .5, 0,
|
|
|
|
.5, .5, 0,
|
|
|
|
.5, -.5, 0,
|
|
|
|
-.5, -.5, 0
|
|
|
|
};
|
|
|
|
|
2017-03-12 23:57:27 +00:00
|
|
|
lovrGraphicsBindTexture(NULL);
|
2017-02-03 23:16:30 +00:00
|
|
|
lovrGraphicsSetShapeData(points, 12);
|
2017-03-12 23:57:27 +00:00
|
|
|
lovrGraphicsDrawPrimitive(GL_LINE_LOOP, 0, 0, 0);
|
2016-10-04 03:56:45 +00:00
|
|
|
} else if (mode == DRAW_MODE_FILL) {
|
2016-10-07 06:34:35 +00:00
|
|
|
float data[] = {
|
2017-01-13 09:59:00 +00:00
|
|
|
-.5, .5, 0, 0, 0, -1, 0, 0,
|
|
|
|
-.5, -.5, 0, 0, 0, -1, 0, 1,
|
|
|
|
.5, .5, 0, 0, 0, -1, 1, 0,
|
|
|
|
.5, -.5, 0, 0, 0, -1, 1, 1
|
2016-10-07 06:34:35 +00:00
|
|
|
};
|
|
|
|
|
2017-03-12 23:57:27 +00:00
|
|
|
lovrGraphicsBindTexture(texture);
|
2017-02-03 23:16:30 +00:00
|
|
|
lovrGraphicsSetShapeData(data, 32);
|
2017-03-12 23:57:27 +00:00
|
|
|
lovrGraphicsDrawPrimitive(GL_TRIANGLE_STRIP, 1, 1, 0);
|
2016-10-04 03:56:45 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
lovrGraphicsPop();
|
|
|
|
}
|
|
|
|
|
2017-01-13 09:59:00 +00:00
|
|
|
void lovrGraphicsPlaneFullscreen(Texture* texture) {
|
|
|
|
float data[] = {
|
2017-01-15 21:49:24 +00:00
|
|
|
-1, 1, 0, 0, 1,
|
|
|
|
-1, -1, 0, 0, 0,
|
|
|
|
1, 1, 0, 1, 1,
|
|
|
|
1, -1, 0, 1, 0
|
2017-01-13 09:59:00 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
Shader* lastShader = lovrGraphicsGetShader();
|
2017-03-31 01:56:51 +00:00
|
|
|
|
|
|
|
if (lastShader == state.defaultShader) {
|
|
|
|
lovrRetain(&lastShader->ref);
|
|
|
|
lovrGraphicsSetShader(state.fullscreenShader);
|
|
|
|
}
|
2017-01-13 09:59:00 +00:00
|
|
|
|
2017-03-12 23:57:27 +00:00
|
|
|
lovrGraphicsBindTexture(texture);
|
2017-02-03 23:16:30 +00:00
|
|
|
lovrGraphicsSetShapeData(data, 20);
|
2017-03-12 23:57:27 +00:00
|
|
|
lovrGraphicsDrawPrimitive(GL_TRIANGLE_STRIP, 0, 1, 0);
|
2017-01-13 09:59:00 +00:00
|
|
|
|
2017-03-31 01:56:51 +00:00
|
|
|
if (lastShader == state.defaultShader) {
|
|
|
|
lovrGraphicsSetShader(lastShader);
|
|
|
|
lovrRelease(&lastShader->ref);
|
|
|
|
}
|
2017-01-13 09:59:00 +00:00
|
|
|
}
|
|
|
|
|
2017-06-22 02:42:34 +00:00
|
|
|
void lovrGraphicsBox(DrawMode mode, Texture* texture, mat4 transform) {
|
2016-10-01 19:53:15 +00:00
|
|
|
lovrGraphicsPush();
|
2017-01-20 03:11:42 +00:00
|
|
|
lovrGraphicsMatrixTransform(transform);
|
2016-10-01 19:10:38 +00:00
|
|
|
|
2016-10-01 19:53:15 +00:00
|
|
|
if (mode == DRAW_MODE_LINE) {
|
2016-10-07 06:34:35 +00:00
|
|
|
float points[] = {
|
|
|
|
// Front
|
|
|
|
-.5, .5, -.5,
|
|
|
|
.5, .5, -.5,
|
|
|
|
.5, -.5, -.5,
|
|
|
|
-.5, -.5, -.5,
|
|
|
|
|
|
|
|
// Back
|
|
|
|
-.5, .5, .5,
|
|
|
|
.5, .5, .5,
|
|
|
|
.5, -.5, .5,
|
|
|
|
-.5, -.5, .5
|
|
|
|
};
|
|
|
|
|
2016-10-01 19:10:38 +00:00
|
|
|
unsigned int indices[] = {
|
2016-10-01 19:53:15 +00:00
|
|
|
0, 1, 1, 2, 2, 3, 3, 0, // Front
|
|
|
|
4, 5, 5, 6, 6, 7, 7, 4, // Back
|
2016-10-01 19:10:38 +00:00
|
|
|
0, 4, 1, 5, 2, 6, 3, 7 // Connections
|
|
|
|
};
|
|
|
|
|
2017-03-12 23:57:27 +00:00
|
|
|
lovrGraphicsBindTexture(NULL);
|
2017-02-03 23:16:30 +00:00
|
|
|
lovrGraphicsSetShapeData(points, 24);
|
|
|
|
lovrGraphicsSetIndexData(indices, 24);
|
2017-03-12 23:57:27 +00:00
|
|
|
lovrGraphicsDrawPrimitive(GL_LINES, 0, 0, 1);
|
2016-10-01 19:10:38 +00:00
|
|
|
} else {
|
2016-10-07 06:34:35 +00:00
|
|
|
float data[] = {
|
|
|
|
// Front
|
2017-01-15 21:49:24 +00:00
|
|
|
-.5, -.5, -.5, 0, 0, -1, 0, 0,
|
|
|
|
.5, -.5, -.5, 0, 0, -1, 1, 0,
|
|
|
|
-.5, .5, -.5, 0, 0, -1, 0, 1,
|
|
|
|
.5, .5, -.5, 0, 0, -1, 1, 1,
|
2016-10-07 06:34:35 +00:00
|
|
|
|
|
|
|
// Right
|
2017-01-15 21:49:24 +00:00
|
|
|
.5, .5, -.5, 1, 0, 0, 0, 1,
|
|
|
|
.5, -.5, -.5, 1, 0, 0, 0, 0,
|
|
|
|
.5, .5, .5, 1, 0, 0, 1, 1,
|
|
|
|
.5, -.5, .5, 1, 0, 0, 1, 0,
|
2016-10-07 06:34:35 +00:00
|
|
|
|
|
|
|
// Back
|
2017-01-15 21:49:24 +00:00
|
|
|
.5, -.5, .5, 0, 0, 1, 0, 0,
|
|
|
|
-.5, -.5, .5, 0, 0, 1, 1, 0,
|
|
|
|
.5, .5, .5, 0, 0, 1, 0, 1,
|
|
|
|
-.5, .5, .5, 0, 0, 1, 1, 1,
|
2016-10-07 06:34:35 +00:00
|
|
|
|
|
|
|
// Left
|
2017-01-15 21:49:24 +00:00
|
|
|
-.5, .5, .5, -1, 0, 0, 0, 1,
|
|
|
|
-.5, -.5, .5, -1, 0, 0, 0, 0,
|
|
|
|
-.5, .5, -.5, -1, 0, 0, 1, 1,
|
|
|
|
-.5, -.5, -.5, -1, 0, 0, 1, 0,
|
2016-10-07 06:34:35 +00:00
|
|
|
|
|
|
|
// Bottom
|
2017-01-15 21:49:24 +00:00
|
|
|
-.5, -.5, -.5, 0, -1, 0, 0, 0,
|
|
|
|
-.5, -.5, .5, 0, -1, 0, 0, 1,
|
|
|
|
.5, -.5, -.5, 0, -1, 0, 1, 0,
|
|
|
|
.5, -.5, .5, 0, -1, 0, 1, 1,
|
2016-10-07 06:34:35 +00:00
|
|
|
|
|
|
|
// Adjust
|
2017-01-15 21:49:24 +00:00
|
|
|
.5, -.5, .5, 0, 1, 0, 0, 1,
|
|
|
|
-.5, .5, -.5, 0, 1, 0, 0, 1,
|
2016-10-07 06:34:35 +00:00
|
|
|
|
|
|
|
// Top
|
2017-01-15 21:49:24 +00:00
|
|
|
-.5, .5, -.5, 0, 1, 0, 0, 1,
|
|
|
|
.5, .5, -.5, 0, 1, 0, 1, 1,
|
|
|
|
-.5, .5, .5, 0, 1, 0, 0, 0,
|
|
|
|
.5, .5, .5, 0, 1, 0, 1, 0
|
2016-10-01 19:53:15 +00:00
|
|
|
};
|
|
|
|
|
2017-03-12 23:57:27 +00:00
|
|
|
lovrGraphicsBindTexture(texture);
|
2017-02-03 23:16:30 +00:00
|
|
|
lovrGraphicsSetShapeData(data, 208);
|
2017-03-12 23:57:27 +00:00
|
|
|
lovrGraphicsDrawPrimitive(GL_TRIANGLE_STRIP, 1, 1, 0);
|
2016-10-01 19:10:38 +00:00
|
|
|
}
|
2016-10-01 19:53:15 +00:00
|
|
|
|
|
|
|
lovrGraphicsPop();
|
2016-09-30 06:18:51 +00:00
|
|
|
}
|
2016-10-24 22:02:23 +00:00
|
|
|
|
2017-06-21 03:54:22 +00:00
|
|
|
void lovrGraphicsCylinder(float x1, float y1, float z1, float x2, float y2, float z2, float r1, float r2, int capped, int segments) {
|
|
|
|
float axis[3] = { x1 - x2, y1 - y2, z1 - z2 };
|
|
|
|
float n[3] = { x1 - x2, y1 - y2, z1 - z2 };
|
|
|
|
float p[3];
|
|
|
|
float q[3];
|
|
|
|
|
|
|
|
int stride = 6;
|
|
|
|
int dataSize = stride * ((capped && r1) * (segments + 2) + (capped && r2) * (segments + 2) + 2 * (segments + 1));
|
|
|
|
int indexSize = 3 * segments * ((capped && r1) + (capped && r2) + 2);
|
|
|
|
|
|
|
|
vec_clear(&state.shapeData);
|
|
|
|
vec_reserve(&state.shapeData, dataSize);
|
|
|
|
state.shapeData.length = 0;
|
|
|
|
float* data = state.shapeData.data;
|
|
|
|
|
|
|
|
vec_clear(&state.shapeIndices);
|
|
|
|
vec_reserve(&state.shapeIndices, indexSize);
|
|
|
|
state.shapeIndices.length = 0;
|
|
|
|
unsigned int* indices = state.shapeIndices.data;
|
|
|
|
|
|
|
|
vec3_init(p, n);
|
|
|
|
|
|
|
|
if (n[0] == 0 && n[2] == 0) {
|
|
|
|
p[0] += 1;
|
|
|
|
} else {
|
|
|
|
p[1] += 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
vec3_init(q, p);
|
|
|
|
vec3_cross(q, n);
|
|
|
|
vec3_cross(n, q);
|
|
|
|
vec3_init(p, n);
|
|
|
|
vec3_normalize(p);
|
|
|
|
vec3_normalize(q);
|
|
|
|
vec3_normalize(axis);
|
|
|
|
|
|
|
|
#define PUSH_CYLINDER_VERTEX(x, y, z, nx, ny, nz) \
|
|
|
|
data[state.shapeData.length++] = x; \
|
|
|
|
data[state.shapeData.length++] = y; \
|
|
|
|
data[state.shapeData.length++] = z; \
|
|
|
|
data[state.shapeData.length++] = nx; \
|
|
|
|
data[state.shapeData.length++] = ny; \
|
|
|
|
data[state.shapeData.length++] = nz;
|
|
|
|
|
|
|
|
#define PUSH_CYLINDER_TRIANGLE(i1, i2, i3) \
|
|
|
|
indices[state.shapeIndices.length++] = i1; \
|
|
|
|
indices[state.shapeIndices.length++] = i2; \
|
|
|
|
indices[state.shapeIndices.length++] = i3;
|
|
|
|
|
|
|
|
// Ring
|
|
|
|
int ringOffset = state.shapeData.length / 6;
|
|
|
|
for (int i = 0; i <= segments; i++) {
|
|
|
|
float theta = i * (2 * M_PI) / segments;
|
|
|
|
|
|
|
|
n[0] = cos(theta) * p[0] + sin(theta) * q[0];
|
|
|
|
n[1] = cos(theta) * p[1] + sin(theta) * q[1];
|
|
|
|
n[2] = cos(theta) * p[2] + sin(theta) * q[2];
|
|
|
|
|
|
|
|
PUSH_CYLINDER_VERTEX(x1 + r1 * n[0], y1 + r1 * n[1], z1 + r1 * n[2], n[0], n[1], n[2]);
|
|
|
|
PUSH_CYLINDER_VERTEX(x2 + r2 * n[0], y2 + r2 * n[1], z2 + r2 * n[2], n[0], n[1], n[2]);
|
|
|
|
}
|
|
|
|
|
|
|
|
// Top
|
|
|
|
int topOffset = state.shapeData.length / 6;
|
|
|
|
if (capped && r1 != 0) {
|
|
|
|
PUSH_CYLINDER_VERTEX(x1, y1, z1, axis[0], axis[1], axis[2]);
|
|
|
|
|
|
|
|
for (int i = 0; i <= segments; i++) {
|
|
|
|
int j = i * 2 * stride;
|
|
|
|
PUSH_CYLINDER_VERTEX(data[j + 0], data[j + 1], data[j + 2], axis[0], axis[1], axis[2]);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// Bottom
|
|
|
|
int bottomOffset = state.shapeData.length / 6;
|
|
|
|
if (capped && r2 != 0) {
|
|
|
|
PUSH_CYLINDER_VERTEX(x2, y2, z2, -axis[0], -axis[1], -axis[2]);
|
|
|
|
|
|
|
|
for (int i = 0; i <= segments; i++) {
|
|
|
|
int j = i * 2 * stride + stride;
|
|
|
|
PUSH_CYLINDER_VERTEX(data[j + 0], data[j + 1], data[j + 2], -axis[0], -axis[1], -axis[2]);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// Indices
|
|
|
|
for (int i = 0; i < segments; i++) {
|
|
|
|
int j = ringOffset + 2 * i;
|
|
|
|
PUSH_CYLINDER_TRIANGLE(j, j + 1, j + 2);
|
|
|
|
PUSH_CYLINDER_TRIANGLE(j + 1, j + 3, j + 2);
|
|
|
|
|
|
|
|
if (capped && r1 != 0) {
|
|
|
|
PUSH_CYLINDER_TRIANGLE(topOffset, topOffset + i + 1, topOffset + i + 2);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (capped && r2 != 0) {
|
|
|
|
PUSH_CYLINDER_TRIANGLE(bottomOffset, bottomOffset + i + 1, bottomOffset + i + 2);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2017-06-22 06:10:45 +00:00
|
|
|
lovrGraphicsBindTexture(NULL);
|
2017-06-21 03:54:22 +00:00
|
|
|
lovrGraphicsDrawPrimitive(GL_TRIANGLES, 1, 0, 1);
|
|
|
|
#undef PUSH_CYLINDER_VERTEX
|
|
|
|
#undef PUSH_CYLINDER_TRIANGLE
|
|
|
|
}
|
|
|
|
|
2017-06-22 06:10:45 +00:00
|
|
|
void lovrGraphicsSphere(Texture* texture, mat4 transform, int segments) {
|
|
|
|
vec_clear(&state.shapeData);
|
|
|
|
vec_clear(&state.shapeIndices);
|
|
|
|
|
|
|
|
for (int i = 0; i <= segments; i++) {
|
|
|
|
float v = i / (float) segments;
|
|
|
|
for (int j = 0; j <= segments; j++) {
|
|
|
|
float u = j / (float) segments;
|
|
|
|
|
|
|
|
float x = -cos(u * 2 * M_PI) * sin(v * M_PI);
|
|
|
|
float y = cos(v * M_PI);
|
|
|
|
float z = sin(u * 2 * M_PI) * sin(v * M_PI);
|
|
|
|
|
|
|
|
vec_push(&state.shapeData, x);
|
|
|
|
vec_push(&state.shapeData, y);
|
|
|
|
vec_push(&state.shapeData, z);
|
|
|
|
|
|
|
|
vec_push(&state.shapeData, x);
|
|
|
|
vec_push(&state.shapeData, y);
|
|
|
|
vec_push(&state.shapeData, z);
|
|
|
|
|
|
|
|
vec_push(&state.shapeData, u);
|
|
|
|
vec_push(&state.shapeData, v);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
for (int i = 0; i < segments; i++) {
|
|
|
|
unsigned int offset0 = i * (segments + 1);
|
|
|
|
unsigned int offset1 = (i + 1) * (segments + 1);
|
|
|
|
for (int j = 0; j < segments; j++) {
|
|
|
|
unsigned int index0 = offset0 + j;
|
|
|
|
unsigned int index1 = offset1 + j;
|
|
|
|
vec_push(&state.shapeIndices, index0);
|
|
|
|
vec_push(&state.shapeIndices, index1);
|
|
|
|
vec_push(&state.shapeIndices, index0 + 1);
|
|
|
|
vec_push(&state.shapeIndices, index1);
|
|
|
|
vec_push(&state.shapeIndices, index1 + 1);
|
|
|
|
vec_push(&state.shapeIndices, index0 + 1);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
lovrGraphicsBindTexture(texture);
|
|
|
|
lovrGraphicsPush();
|
|
|
|
lovrGraphicsMatrixTransform(transform);
|
|
|
|
lovrGraphicsDrawPrimitive(GL_TRIANGLES, 1, 1, 1);
|
|
|
|
lovrGraphicsPop();
|
|
|
|
}
|
|
|
|
|
2016-10-24 22:02:23 +00:00
|
|
|
void lovrGraphicsSkybox(Skybox* skybox, float angle, float ax, float ay, float az) {
|
|
|
|
lovrGraphicsPrepare();
|
|
|
|
lovrGraphicsPush();
|
|
|
|
lovrGraphicsOrigin();
|
2016-12-02 01:32:39 +00:00
|
|
|
lovrGraphicsRotate(angle, ax, ay, az);
|
2016-10-24 22:02:23 +00:00
|
|
|
|
2017-03-12 23:45:24 +00:00
|
|
|
if (skybox->type == SKYBOX_CUBE) {
|
2017-03-13 00:13:50 +00:00
|
|
|
Shader* lastShader = lovrGraphicsGetShader();
|
2017-03-31 01:54:39 +00:00
|
|
|
|
|
|
|
if (lastShader == state.defaultShader) {
|
|
|
|
lovrRetain(&lastShader->ref);
|
|
|
|
lovrGraphicsSetShader(state.skyboxShader);
|
|
|
|
}
|
2017-03-13 00:13:50 +00:00
|
|
|
|
2017-03-12 23:45:24 +00:00
|
|
|
float cube[] = {
|
|
|
|
// Front
|
|
|
|
1.f, -1.f, -1.f,
|
|
|
|
1.f, 1.f, -1.f,
|
|
|
|
-1.f, -1.f, -1.f,
|
|
|
|
-1.f, 1.f, -1.f,
|
2016-10-24 22:02:23 +00:00
|
|
|
|
2017-03-12 23:45:24 +00:00
|
|
|
// Left
|
|
|
|
-1.f, 1.f, -1.f,
|
|
|
|
-1.f, 1.f, 1.f,
|
|
|
|
-1.f, -1.f, -1.f,
|
|
|
|
-1.f, -1.f, 1.f,
|
2017-01-29 07:19:28 +00:00
|
|
|
|
2017-03-12 23:45:24 +00:00
|
|
|
// Back
|
|
|
|
-1.f, -1.f, 1.f,
|
|
|
|
1.f, -1.f, 1.f,
|
|
|
|
-1.f, 1.f, 1.f,
|
|
|
|
1.f, 1.f, 1.f,
|
2016-10-24 22:02:23 +00:00
|
|
|
|
2017-03-12 23:45:24 +00:00
|
|
|
// Right
|
|
|
|
1.f, 1.f, 1.f,
|
|
|
|
1.f, -1.f, 1.f,
|
|
|
|
1.f, 1.f, -1.f,
|
|
|
|
1.f, -1.f, -1.f,
|
|
|
|
|
|
|
|
// Bottom
|
|
|
|
1.f, -1.f, -1.f,
|
|
|
|
1.f, -1.f, 1.f,
|
|
|
|
-1.f, -1.f, -1.f,
|
|
|
|
-1.f, -1.f, 1.f,
|
|
|
|
|
|
|
|
// Adjust
|
|
|
|
-1.f, -1.f, 1.f,
|
|
|
|
-1.f, 1.f, -1.f,
|
2016-10-24 22:02:23 +00:00
|
|
|
|
2017-03-12 23:45:24 +00:00
|
|
|
// Top
|
|
|
|
-1.f, 1.f, -1.f,
|
|
|
|
-1.f, 1.f, 1.f,
|
|
|
|
1.f, 1.f, -1.f,
|
|
|
|
1.f, 1.f, 1.f
|
|
|
|
};
|
|
|
|
|
2017-03-31 01:48:03 +00:00
|
|
|
lovrGraphicsSetShapeData(cube, 78);
|
2017-03-12 23:45:24 +00:00
|
|
|
|
|
|
|
glDepthMask(GL_FALSE);
|
|
|
|
glActiveTexture(GL_TEXTURE1);
|
|
|
|
glBindTexture(GL_TEXTURE_CUBE_MAP, skybox->texture);
|
|
|
|
|
|
|
|
int wasCulling = lovrGraphicsIsCullingEnabled();
|
|
|
|
lovrGraphicsSetCullingEnabled(0);
|
2017-03-12 23:57:27 +00:00
|
|
|
lovrGraphicsDrawPrimitive(GL_TRIANGLE_STRIP, 0, 0, 0);
|
2017-03-12 23:45:24 +00:00
|
|
|
lovrGraphicsSetCullingEnabled(wasCulling);
|
|
|
|
|
|
|
|
glBindTexture(GL_TEXTURE_CUBE_MAP, 0);
|
|
|
|
glActiveTexture(GL_TEXTURE0);
|
|
|
|
glDepthMask(GL_TRUE);
|
2017-03-13 00:13:50 +00:00
|
|
|
|
2017-03-31 01:54:39 +00:00
|
|
|
if (lastShader == state.defaultShader) {
|
|
|
|
lovrGraphicsSetShader(lastShader);
|
|
|
|
lovrRelease(&lastShader->ref);
|
|
|
|
}
|
2017-03-12 23:45:24 +00:00
|
|
|
} else if (skybox->type == SKYBOX_PANORAMA) {
|
|
|
|
int resolution = 40;
|
2017-03-13 00:13:50 +00:00
|
|
|
int idx = 0;
|
|
|
|
float sphere[8610]; // (resolution + 1) * (resolution + 1) * 5
|
2017-03-12 23:45:24 +00:00
|
|
|
|
2017-03-13 00:13:50 +00:00
|
|
|
for (int i = 0; i <= resolution; i++) {
|
|
|
|
float theta = i * M_PI / (float) resolution;
|
2017-03-12 23:45:24 +00:00
|
|
|
float sinTheta = sin(theta);
|
|
|
|
float cosTheta = cos(theta);
|
|
|
|
|
2017-03-13 00:13:50 +00:00
|
|
|
for (int j = 0; j <= resolution; j++) {
|
|
|
|
float phi = j * 2 * M_PI / (float) resolution;
|
2017-03-12 23:45:24 +00:00
|
|
|
float sinPhi = sin(phi);
|
|
|
|
float cosPhi = cos(phi);
|
|
|
|
|
|
|
|
float x = sinPhi * sinTheta;
|
|
|
|
float y = cosTheta;
|
|
|
|
float z = -cosPhi * sinTheta;
|
2017-03-13 00:13:50 +00:00
|
|
|
float u = j / (float) resolution;
|
|
|
|
float v = i / (float) resolution;
|
|
|
|
|
|
|
|
sphere[idx++] = x;
|
|
|
|
sphere[idx++] = y;
|
|
|
|
sphere[idx++] = z;
|
|
|
|
sphere[idx++] = u;
|
|
|
|
sphere[idx++] = v;
|
2017-03-12 23:45:24 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2017-03-13 00:13:50 +00:00
|
|
|
idx = 0;
|
2017-03-12 23:57:27 +00:00
|
|
|
unsigned int indices[9600]; // resolution * resolution * 6
|
2017-03-12 23:45:24 +00:00
|
|
|
for (int i = 0; i < resolution; i++) {
|
2017-03-13 00:13:50 +00:00
|
|
|
unsigned int offset0 = i * (resolution + 1);
|
|
|
|
unsigned int offset1 = (i + 1) * (resolution + 1);
|
2017-03-12 23:45:24 +00:00
|
|
|
for (int j = 0; j < resolution; j++) {
|
2017-03-13 00:13:50 +00:00
|
|
|
unsigned int index0 = offset0 + j;
|
|
|
|
unsigned int index1 = offset1 + j;
|
|
|
|
indices[idx++] = index0;
|
|
|
|
indices[idx++] = index1;
|
|
|
|
indices[idx++] = index0 + 1;
|
|
|
|
indices[idx++] = index1;
|
|
|
|
indices[idx++] = index1 + 1;
|
|
|
|
indices[idx++] = index0 + 1;
|
2017-03-12 23:45:24 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2017-03-12 23:57:27 +00:00
|
|
|
Texture* oldTexture = lovrGraphicsGetTexture();
|
|
|
|
glBindTexture(GL_TEXTURE_2D, skybox->texture);
|
|
|
|
|
2017-03-13 00:31:06 +00:00
|
|
|
lovrGraphicsSetShapeData(sphere, 8610);
|
2017-03-12 23:45:24 +00:00
|
|
|
lovrGraphicsSetIndexData(indices, 9600);
|
|
|
|
glDepthMask(GL_FALSE);
|
2017-03-12 23:57:27 +00:00
|
|
|
lovrGraphicsDrawPrimitive(GL_TRIANGLES, 0, 1, 1);
|
2017-03-12 23:45:24 +00:00
|
|
|
glDepthMask(GL_TRUE);
|
2017-03-12 23:57:27 +00:00
|
|
|
|
|
|
|
glBindTexture(GL_TEXTURE_2D, oldTexture->id);
|
2017-03-12 23:45:24 +00:00
|
|
|
}
|
2016-10-24 22:02:23 +00:00
|
|
|
|
|
|
|
lovrGraphicsPop();
|
|
|
|
}
|
2017-02-03 23:16:30 +00:00
|
|
|
|
2017-03-16 03:12:56 +00:00
|
|
|
void lovrGraphicsPrint(const char* str, mat4 transform, float wrap, HorizontalAlign halign, VerticalAlign valign) {
|
2017-02-07 09:13:39 +00:00
|
|
|
lovrGraphicsEnsureFont();
|
2017-03-16 03:12:56 +00:00
|
|
|
lovrFontPrint(state.activeFont, str, transform, wrap, halign, valign);
|
2017-02-03 23:16:30 +00:00
|
|
|
}
|