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Avoid redundant strlen in font printing;

This commit is contained in:
bjorn 2018-12-25 00:28:56 -08:00 committed by Bjorn Swenson
parent fae7786c8d
commit d66057ee70
5 changed files with 11 additions and 11 deletions
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5
src/api/graphics.c
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@ -852,13 +852,14 @@ static int l_lovrGraphicsSkybox(lua_State* L) {
}
static int l_lovrGraphicsPrint(lua_State* L) {
const char* str = luaL_checkstring(L, 1);
size_t length;
const char* str = luaL_checklstring(L, 1, &length);
float transform[16];
int index = luax_readmat4(L, 2, transform, 1, NULL);
float wrap = luaL_optnumber(L, index++, 0);
HorizontalAlign halign = luaL_checkoption(L, index++, "center", HorizontalAligns);
VerticalAlign valign = luaL_checkoption(L, index++, "middle", VerticalAligns);
lovrGraphicsPrint(str, transform, wrap, halign, valign);
lovrGraphicsPrint(str, length, transform, wrap, halign, valign);
return 0;
}

7
src/graphics/font.c
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@ -68,7 +68,7 @@ Rasterizer* lovrFontGetRasterizer(Font* font) {
return font->rasterizer;
}
void lovrFontRender(Font* font, const char* str, float wrap, HorizontalAlign halign, VerticalAlign valign, float* vertices, float* offsety, uint32_t* vertexCount) {
void lovrFontRender(Font* font, const char* str, size_t length, float wrap, HorizontalAlign halign, VerticalAlign valign, float* vertices, float* offsety, uint32_t* vertexCount) {
FontAtlas* atlas = &font->atlas;
float cx = 0;
@ -77,9 +77,8 @@ void lovrFontRender(Font* font, const char* str, float wrap, HorizontalAlign hal
float v = atlas->height;
float scale = 1 / font->pixelDensity;
int len = strlen(str);
const char* start = str;
const char* end = str + len;
const char* end = str + length;
unsigned int previous = '\0';
unsigned int codepoint;
size_t bytes;
@ -119,7 +118,7 @@ void lovrFontRender(Font* font, const char* str, float wrap, HorizontalAlign hal
// Start over if texture was repacked
if (u != atlas->width || v != atlas->height) {
lovrFontRender(font, start, wrap, halign, valign, vertices, offsety, vertexCount);
lovrFontRender(font, start, length, wrap, halign, valign, vertices, offsety, vertexCount);
return;
}

2
src/graphics/font.h
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@ -42,7 +42,7 @@ Font* lovrFontInit(Font* font, Rasterizer* rasterizer);
#define lovrFontCreate(...) lovrFontInit(lovrAlloc(Font), __VA_ARGS__)
void lovrFontDestroy(void* ref);
Rasterizer* lovrFontGetRasterizer(Font* font);
void lovrFontRender(Font* font, const char* str, float wrap, HorizontalAlign halign, VerticalAlign valign, float* vertices, float* offsety, uint32_t* vertexCount);
void lovrFontRender(Font* font, const char* str, size_t length, float wrap, HorizontalAlign halign, VerticalAlign valign, float* vertices, float* offsety, uint32_t* vertexCount);
float lovrFontGetWidth(Font* font, const char* string, float wrap);
float lovrFontGetHeight(Font* font);
float lovrFontGetAscent(Font* font);

6
src/graphics/graphics.c
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@ -879,14 +879,14 @@ void lovrGraphicsSkybox(Texture* texture, float angle, float ax, float ay, float
});
}
void lovrGraphicsPrint(const char* str, mat4 transform, float wrap, HorizontalAlign halign, VerticalAlign valign) {
void lovrGraphicsPrint(const char* str, size_t length, mat4 transform, float wrap, HorizontalAlign halign, VerticalAlign valign) {
Font* font = lovrGraphicsGetFont();
float scale = 1 / font->pixelDensity;
float offsety;
uint32_t vertexCount;
uint32_t maxVertices = strlen(str) * 6;
uint32_t maxVertices = length * 6;
float* vertices = lovrGraphicsGetVertexPointer(maxVertices);
lovrFontRender(font, str, wrap, halign, valign, vertices, &offsety, &vertexCount);
lovrFontRender(font, str, length, wrap, halign, valign, vertices, &offsety, &vertexCount);
Pipeline pipeline = state.pipeline;
pipeline.alphaSampling = true;

2
src/graphics/graphics.h
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@ -233,7 +233,7 @@ void lovrGraphicsCircle(DrawStyle style, Material* material, mat4 transform, int
void lovrGraphicsCylinder(Material* material, float x1, float y1, float z1, float x2, float y2, float z2, float r1, float r2, bool capped, int segments);
void lovrGraphicsSphere(Material* material, mat4 transform, int segments);
void lovrGraphicsSkybox(Texture* texture, float angle, float ax, float ay, float az);
void lovrGraphicsPrint(const char* str, mat4 transform, float wrap, HorizontalAlign halign, VerticalAlign valign);
void lovrGraphicsPrint(const char* str, size_t length, mat4 transform, float wrap, HorizontalAlign halign, VerticalAlign valign);
void lovrGraphicsFill(Texture* texture, float u, float v, float w, float h);
#define lovrGraphicsStencil lovrGpuStencil
#define lovrGraphicsCompute lovrGpuCompute