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lovr
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Add lovrModel and lovrView matrices;

This commit is contained in:
bjorn 2017-08-10 22:23:19 -07:00
parent 74f585ca8d
commit 0311232ae1
11 changed files with 491 additions and 438 deletions
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53
src/api/graphics.c
View File

@ -14,6 +14,7 @@ map_int_t CompareModes;
map_int_t DrawModes;
map_int_t FilterModes;
map_int_t HorizontalAligns;
map_int_t MatrixTypes;
map_int_t MeshAttributeTypes;
map_int_t MeshDrawModes;
map_int_t MeshUsages;
@ -22,6 +23,16 @@ map_int_t VerticalAligns;
map_int_t Windings;
map_int_t WrapModes;
static int luax_optmatrixtype(lua_State* L, int index, MatrixType* type) {
if (lua_type(L, index) == LUA_TSTRING) {
*type = *(MatrixType*) luax_checkenum(L, index++, &MatrixTypes, "matrix type");
} else {
*type = MATRIX_MODEL;
}
return index;
}
static void luax_readvertices(lua_State* L, int index, vec_float_t* points) {
int isTable = lua_istable(L, index);
@ -109,6 +120,10 @@ int l_lovrGraphicsInit(lua_State* L) {
map_set(&HorizontalAligns, "right", ALIGN_RIGHT);
map_set(&HorizontalAligns, "center", ALIGN_CENTER);
map_init(&MatrixTypes);
map_set(&MatrixTypes, "model", MATRIX_MODEL);
map_set(&MatrixTypes, "view", MATRIX_VIEW);
map_init(&MeshAttributeTypes);
map_set(&MeshAttributeTypes, "float", MESH_FLOAT);
map_set(&MeshAttributeTypes, "byte", MESH_BYTE);
@ -404,34 +419,42 @@ int l_lovrGraphicsOrigin(lua_State* L) {
}
int l_lovrGraphicsTranslate(lua_State* L) {
float x = luaL_checknumber(L, 1);
float y = luaL_checknumber(L, 2);
float z = luaL_checknumber(L, 3);
lovrGraphicsTranslate(x, y, z);
MatrixType type;
int i = luax_optmatrixtype(L, 1, &type);
float x = luaL_checknumber(L, i++);
float y = luaL_checknumber(L, i++);
float z = luaL_checknumber(L, i++);
lovrGraphicsTranslate(type, x, y, z);
return 0;
}
int l_lovrGraphicsRotate(lua_State* L) {
float angle = luaL_checknumber(L, 1);
float axisX = luaL_optnumber(L, 2, 0);
float axisY = luaL_optnumber(L, 3, 1);
float axisZ = luaL_optnumber(L, 4, 0);
lovrGraphicsRotate(angle, axisX, axisY, axisZ);
MatrixType type;
int i = luax_optmatrixtype(L, 1, &type);
float angle = luaL_checknumber(L, i++);
float axisX = luaL_optnumber(L, i++, 0);
float axisY = luaL_optnumber(L, i++, 1);
float axisZ = luaL_optnumber(L, i++, 0);
lovrGraphicsRotate(type, angle, axisX, axisY, axisZ);
return 0;
}
int l_lovrGraphicsScale(lua_State* L) {
float x = luaL_checknumber(L, 1);
float y = luaL_optnumber(L, 2, x);
float z = luaL_optnumber(L, 3, x);
lovrGraphicsScale(x, y, z);
MatrixType type;
int i = luax_optmatrixtype(L, 1, &type);
float x = luaL_checknumber(L, i++);
float y = luaL_optnumber(L, i++, x);
float z = luaL_optnumber(L, i++, x);
lovrGraphicsScale(type, x, y, z);
return 0;
}
int l_lovrGraphicsTransform(lua_State* L) {
MatrixType type;
int i = luax_optmatrixtype(L, 1, &type);
float transform[16];
luax_readtransform(L, 1, transform, 0);
lovrGraphicsMatrixTransform(transform);
luax_readtransform(L, i++, transform, 0);
lovrGraphicsMatrixTransform(type, transform);
return 0;
}

1
src/api/lovr.h
View File

@ -59,6 +59,7 @@ extern map_int_t HeadsetEyes;
extern map_int_t HeadsetOrigins;
extern map_int_t HorizontalAligns;
extern map_int_t JointTypes;
extern map_int_t MatrixTypes;
extern map_int_t MeshAttributeTypes;
extern map_int_t MeshDrawModes;
extern map_int_t MeshUsages;

3
src/api/types/shader.c
View File

@ -1,4 +1,5 @@
#include "api/lovr.h"
#include "graphics/graphics.h"
#include "graphics/shader.h"
#include "math/transform.h"
@ -15,7 +16,7 @@ int l_lovrShaderSend(lua_State* L) {
GLenum type;
int size;
lovrShaderGetUniformType(shader, name, &type, &size);
lovrShaderBind(shader, shader->transform, shader->projection, shader->color, 0); // Hmm
lovrGraphicsBindProgram(shader->id);
float data[16];
int n;
vec_float_t values;

4
src/data/boot.lua
View File

@ -46,7 +46,7 @@ function lovr.errhand(message)
lovr.graphics.clear()
lovr.graphics.origin()
if not lovr.headset or not lovr.headset.isPresent() or lovr.headset.getOriginType() == 'head' then
lovr.graphics.translate(0, -conf.headset.offset, 0)
lovr.graphics.translate('view', 0, -conf.headset.offset, 0)
end
if lovr.headset and lovr.headset.isPresent() and lovr.getOS() ~= 'Web' then
lovr.headset.renderTo(render)
@ -183,7 +183,7 @@ function lovr.step()
lovr.graphics.origin()
if lovr.draw then
if not lovr.headset or not lovr.headset.isPresent() or lovr.headset.getOriginType() == 'head' then
lovr.graphics.translate(0, -conf.headset.offset, 0)
lovr.graphics.translate('view', 0, -conf.headset.offset, 0)
end
if lovr.headset and lovr.headset.isPresent() then

742
src/data/boot.lua.h
View File

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};
unsigned int boot_lua_len = 5904;
unsigned int boot_lua_len = 5920;

40
src/graphics/graphics.c
View File

@ -84,10 +84,11 @@ void lovrGraphicsPrepare() {
shader = state.defaultShaders[state.defaultShader] = lovrShaderCreateDefault(state.defaultShader);
}
mat4 transform = state.transforms[state.transform];
mat4 model = state.transforms[state.transform][MATRIX_MODEL];
mat4 view = state.transforms[state.transform][MATRIX_VIEW];
mat4 projection = state.canvases[state.canvas].projection;
lovrGraphicsBindProgram(shader->id);
lovrShaderBind(shader, transform, projection, state.color, 0);
lovrShaderBind(shader, model, view, projection, state.color, 0);
}
void lovrGraphicsCreateWindow(int w, int h, int fullscreen, int msaa, const char* title, const char* icon) {
@ -377,7 +378,7 @@ void lovrGraphicsPush() {
lovrThrow("Unbalanced matrix stack (more pushes than pops?)");
}
memcpy(state.transforms[state.transform], state.transforms[state.transform - 1], 16 * sizeof(float));
memcpy(state.transforms[state.transform], state.transforms[state.transform - 1], 2 * 16 * sizeof(float));
}
void lovrGraphicsPop() {
@ -387,23 +388,24 @@ void lovrGraphicsPop() {
}
void lovrGraphicsOrigin() {
mat4_identity(state.transforms[state.transform]);
mat4_identity(state.transforms[state.transform][MATRIX_MODEL]);
mat4_identity(state.transforms[state.transform][MATRIX_VIEW]);
}
void lovrGraphicsTranslate(float x, float y, float z) {
mat4_translate(state.transforms[state.transform], x, y, z);
void lovrGraphicsTranslate(MatrixType type, float x, float y, float z) {
mat4_translate(state.transforms[state.transform][type], x, y, z);
}
void lovrGraphicsRotate(float angle, float ax, float ay, float az) {
mat4_rotate(state.transforms[state.transform], angle, ax, ay, az);
void lovrGraphicsRotate(MatrixType type, float angle, float ax, float ay, float az) {
mat4_rotate(state.transforms[state.transform][type], angle, ax, ay, az);
}
void lovrGraphicsScale(float x, float y, float z) {
mat4_scale(state.transforms[state.transform], x, y, z);
void lovrGraphicsScale(MatrixType type, float x, float y, float z) {
mat4_scale(state.transforms[state.transform][type], x, y, z);
}
void lovrGraphicsMatrixTransform(mat4 transform) {
mat4_multiply(state.transforms[state.transform], transform);
void lovrGraphicsMatrixTransform(MatrixType type, mat4 transform) {
mat4_multiply(state.transforms[state.transform][type], transform);
}
// Primitives
@ -493,7 +495,7 @@ void lovrGraphicsTriangle(DrawMode mode, float* points) {
void lovrGraphicsPlane(DrawMode mode, Texture* texture, mat4 transform) {
lovrGraphicsPush();
lovrGraphicsMatrixTransform(transform);
lovrGraphicsMatrixTransform(MATRIX_MODEL, transform);
if (mode == DRAW_MODE_LINE) {
float points[] = {
@ -541,7 +543,7 @@ void lovrGraphicsPlaneFullscreen(Texture* texture) {
void lovrGraphicsBox(DrawMode mode, Texture* texture, mat4 transform) {
lovrGraphicsSetDefaultShader(SHADER_DEFAULT);
lovrGraphicsPush();
lovrGraphicsMatrixTransform(transform);
lovrGraphicsMatrixTransform(MATRIX_MODEL, transform);
if (mode == DRAW_MODE_LINE) {
float points[] = {
@ -780,7 +782,7 @@ void lovrGraphicsSphere(Texture* texture, mat4 transform, int segments, Skybox*
} else {
lovrGraphicsBindTexture(texture);
lovrGraphicsPush();
lovrGraphicsMatrixTransform(transform);
lovrGraphicsMatrixTransform(MATRIX_MODEL, transform);
lovrGraphicsDrawPrimitive(GL_TRIANGLES, 1, 1, 1);
lovrGraphicsPop();
}
@ -789,7 +791,7 @@ void lovrGraphicsSphere(Texture* texture, mat4 transform, int segments, Skybox*
void lovrGraphicsSkybox(Skybox* skybox, float angle, float ax, float ay, float az) {
lovrGraphicsPush();
lovrGraphicsOrigin();
lovrGraphicsRotate(angle, ax, ay, az);
lovrGraphicsRotate(MATRIX_MODEL, angle, ax, ay, az);
glDepthMask(GL_FALSE);
int wasCulling = lovrGraphicsIsCullingEnabled();
lovrGraphicsSetCullingEnabled(0);
@ -860,9 +862,9 @@ void lovrGraphicsPrint(const char* str, mat4 transform, float wrap, HorizontalAl
lovrFontRender(font, str, wrap, halign, valign, &state.streamData, &offsety);
lovrGraphicsPush();
lovrGraphicsMatrixTransform(transform);
lovrGraphicsScale(scale, scale, scale);
lovrGraphicsTranslate(0, offsety, 0);
lovrGraphicsMatrixTransform(MATRIX_MODEL, transform);
lovrGraphicsScale(MATRIX_MODEL, scale, scale, scale);
lovrGraphicsTranslate(MATRIX_MODEL, 0, offsety, 0);
lovrGraphicsBindTexture(font->texture);
lovrGraphicsSetDefaultShader(SHADER_FONT);
lovrGraphicsDrawPrimitive(GL_TRIANGLES, 0, 1, 0);

15
src/graphics/graphics.h
View File

@ -62,13 +62,18 @@ typedef struct {
int viewport[4];
} CanvasState;
typedef enum {
MATRIX_MODEL,
MATRIX_VIEW
} MatrixType;
typedef struct {
GLFWwindow* window;
Shader* defaultShaders[DEFAULT_SHADER_COUNT];
DefaultShader defaultShader;
Font* defaultFont;
Texture* defaultTexture;
float transforms[MAX_TRANSFORMS + INTERNAL_TRANSFORMS][16];
float transforms[MAX_TRANSFORMS + INTERNAL_TRANSFORMS][2][16];
int transform;
Color backgroundColor;
BlendMode blendMode;
@ -140,10 +145,10 @@ void lovrGraphicsSetWireframe(int wireframe);
void lovrGraphicsPush();
void lovrGraphicsPop();
void lovrGraphicsOrigin();
void lovrGraphicsTranslate(float x, float y, float z);
void lovrGraphicsRotate(float angle, float ax, float ay, float az);
void lovrGraphicsScale(float x, float y, float z);
void lovrGraphicsMatrixTransform(mat4 transform);
void lovrGraphicsTranslate(MatrixType type, float x, float y, float z);
void lovrGraphicsRotate(MatrixType type, float angle, float ax, float ay, float az);
void lovrGraphicsScale(MatrixType type, float x, float y, float z);
void lovrGraphicsMatrixTransform(MatrixType type, mat4 transform);
// Primitives
void lovrGraphicsPoints(float* points, int count);

2
src/graphics/mesh.c
View File

@ -120,7 +120,7 @@ void lovrMeshDraw(Mesh* mesh, mat4 transform) {
}
lovrGraphicsPush();
lovrGraphicsMatrixTransform(transform);
lovrGraphicsMatrixTransform(MATRIX_MODEL, transform);
lovrGraphicsBindTexture(mesh->texture);
lovrGraphicsSetDefaultShader(SHADER_DEFAULT);
lovrGraphicsPrepare();

62
src/graphics/shader.c
View File

@ -15,9 +15,11 @@ static const char* lovrShaderVertexPrefix = ""
"in vec3 lovrNormal; \n"
"in vec2 lovrTexCoord; \n"
"out vec2 texCoord; \n"
"uniform mat4 lovrModel; \n"
"uniform mat4 lovrView; \n"
"uniform mat4 lovrProjection; \n"
"uniform mat4 lovrTransform; \n"
"uniform mat3 lovrNormalMatrix; \n"
"uniform mat4 lovrProjection; \n";
"uniform mat3 lovrNormalMatrix; \n";
static const char* lovrShaderFragmentPrefix = ""
#ifdef EMSCRIPTEN
@ -179,13 +181,14 @@ Shader* lovrShaderCreate(const char* vertexSource, const char* fragmentSource) {
// Initial state
shader->id = id;
mat4_identity(shader->transform);
mat4_identity(shader->model);
mat4_identity(shader->view);
mat4_identity(shader->projection);
shader->color = (Color) { 0, 0, 0, 0 };
// Send initial uniform values to shader
lovrGraphicsBindProgram(id);
lovrShaderBind(shader, shader->transform, shader->projection, shader->color, 1);
lovrShaderBind(shader, shader->model, shader->view, shader->projection, shader->color, 1);
return shader;
}
@ -207,41 +210,56 @@ void lovrShaderDestroy(const Ref* ref) {
free(shader);
}
void lovrShaderBind(Shader* shader, mat4 transform, mat4 projection, Color color, int force) {
void lovrShaderBind(Shader* shader, mat4 model, mat4 view, mat4 projection, Color color, int force) {
int dirtyModel = force || memcmp(shader->model, model, 16 * sizeof(float));
int dirtyView = force || memcmp(shader->view, view, 16 * sizeof(float));
int dirtyTransform = dirtyModel || dirtyView;
int dirtyProjection = force || memcmp(shader->projection, projection, 16 * sizeof(float));
int dirtyColor = force || memcmp(&shader->color, &color, 4 * sizeof(uint8_t));
// Update transform if necessary
if (force || memcmp(shader->transform, transform, 16 * sizeof(float))) {
if (dirtyModel) {
int uniformId = lovrShaderGetUniformId(shader, "lovrModel");
lovrShaderSendFloatMat4(shader, uniformId, model);
memcpy(shader->model, model, 16 * sizeof(float));
}
if (dirtyView) {
int uniformId = lovrShaderGetUniformId(shader, "lovrView");
lovrShaderSendFloatMat4(shader, uniformId, view);
memcpy(shader->view, view, 16 * sizeof(float));
}
if (dirtyTransform) {
float matrix[16];
mat4_multiply(mat4_set(matrix, view), model);
int uniformId = lovrShaderGetUniformId(shader, "lovrTransform");
lovrShaderSendFloatMat4(shader, uniformId, transform);
memcpy(shader->transform, transform, 16 * sizeof(float));
lovrShaderSendFloatMat4(shader, uniformId, matrix);
float normalMatrix[16];
mat4_set(normalMatrix, transform);
normalMatrix[12] = normalMatrix[13] = normalMatrix[14] = 0;
normalMatrix[15] = 1;
if (mat4_invert(normalMatrix)) {
mat4_transpose(normalMatrix);
matrix[12] = matrix[13] = matrix[14] = 0;
matrix[15] = 1;
if (mat4_invert(matrix)) {
mat4_transpose(matrix);
} else {
mat4_identity(normalMatrix);
mat4_identity(matrix);
}
float normalMatrix3x3[9] = {
float normalMatrix[9] = {
normalMatrix[0], normalMatrix[1], normalMatrix[2],
normalMatrix[4], normalMatrix[5], normalMatrix[6],
normalMatrix[8], normalMatrix[9], normalMatrix[10]
};
uniformId = lovrShaderGetUniformId(shader, "lovrNormalMatrix");
lovrShaderSendFloatMat3(shader, uniformId, normalMatrix3x3);
lovrShaderSendFloatMat3(shader, uniformId, normalMatrix);
}
// Update projection if necessary
if (force || memcmp(shader->projection, projection, 16 * sizeof(float))) {
if (dirtyProjection) {
int uniformId = lovrShaderGetUniformId(shader, "lovrProjection");
lovrShaderSendFloatMat4(shader, uniformId, projection);
memcpy(shader->projection, projection, 16 * sizeof(float));
}
// Update color if necessary
if (force || memcmp(&shader->color, &color, 4 * sizeof(uint8_t))) {
if (dirtyColor) {
int uniformId = lovrShaderGetUniformId(shader, "lovrColor");
float c[4] = { color.r / 255., color.g / 255., color.b / 255., color.a / 255. };
lovrShaderSendFloatVec4(shader, uniformId, 1, c);

5
src/graphics/shader.h
View File

@ -31,7 +31,8 @@ typedef struct {
Ref ref;
int id;
map_uniform_t uniforms;
float transform[16];
float model[16];
float view[16];
float projection[16];
Color color;
} Shader;
@ -39,7 +40,7 @@ typedef struct {
Shader* lovrShaderCreate(const char* vertexSource, const char* fragmentSource);
Shader* lovrShaderCreateDefault(DefaultShader type);
void lovrShaderDestroy(const Ref* ref);
void lovrShaderBind(Shader* shader, mat4 transform, mat4 projection, Color color, int force);
void lovrShaderBind(Shader* shader, mat4 model, mat4 view, mat4 projection, Color color, int force);
int lovrShaderGetAttributeId(Shader* shader, const char* name);
int lovrShaderGetUniformId(Shader* shader, const char* name);
int lovrShaderGetUniformType(Shader* shader, const char* name, GLenum* type, int* count);

2
src/headset/openvr.c
View File

@ -637,7 +637,7 @@ void lovrHeadsetRenderTo(headsetRenderCallback callback, void* userdata) {
// Render
lovrTextureBindFramebuffer(state.texture);
lovrGraphicsPush();
lovrGraphicsMatrixTransform(transform);
lovrGraphicsMatrixTransform(MATRIX_VIEW, transform);
lovrGraphicsSetProjection(projection);
lovrGraphicsClear(1, 1);
callback(eye, userdata);