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Added NV12 and NV21 texture support for OpenGL and OpenGL ES 2.0 renderers

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This commit is contained in:
Sam Lantinga 2014-08-06 11:34:54 -07:00
parent 6299daecba
commit 6fef39d6b8
12 changed files with 456 additions and 183 deletions
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6
include/SDL_pixels.h
View file

@ -248,7 +248,11 @@ enum
SDL_PIXELFORMAT_UYVY = /**< Packed mode: U0+Y0+V0+Y1 (1 plane) */ SDL_PIXELFORMAT_UYVY = /**< Packed mode: U0+Y0+V0+Y1 (1 plane) */
SDL_DEFINE_PIXELFOURCC('U', 'Y', 'V', 'Y'), SDL_DEFINE_PIXELFOURCC('U', 'Y', 'V', 'Y'),
SDL_PIXELFORMAT_YVYU = /**< Packed mode: Y0+V0+Y1+U0 (1 plane) */ SDL_PIXELFORMAT_YVYU = /**< Packed mode: Y0+V0+Y1+U0 (1 plane) */
SDL_DEFINE_PIXELFOURCC('Y', 'V', 'Y', 'U') SDL_DEFINE_PIXELFOURCC('Y', 'V', 'Y', 'U'),
SDL_PIXELFORMAT_NV12 = /**< Planar mode: Y + U/V interleaved (2 planes) */
SDL_DEFINE_PIXELFOURCC('N', 'V', '1', '2'),
SDL_PIXELFORMAT_NV21 = /**< Planar mode: Y + V/U interleaved (2 planes) */
SDL_DEFINE_PIXELFOURCC('N', 'V', '2', '1')
}; };
typedef struct SDL_Color typedef struct SDL_Color

108
src/render/opengl/SDL_render_gl.c
View file

@ -164,8 +164,9 @@ typedef struct
int pitch; int pitch;
SDL_Rect locked_rect; SDL_Rect locked_rect;
/* YV12 texture support */ /* YUV texture support */
SDL_bool yuv; SDL_bool yuv;
SDL_bool nv12;
GLuint utexture; GLuint utexture;
GLuint vtexture; GLuint vtexture;
@ -531,6 +532,8 @@ GL_CreateRenderer(SDL_Window * window, Uint32 flags)
if (data->shaders && data->num_texture_units >= 3) { if (data->shaders && data->num_texture_units >= 3) {
renderer->info.texture_formats[renderer->info.num_texture_formats++] = SDL_PIXELFORMAT_YV12; renderer->info.texture_formats[renderer->info.num_texture_formats++] = SDL_PIXELFORMAT_YV12;
renderer->info.texture_formats[renderer->info.num_texture_formats++] = SDL_PIXELFORMAT_IYUV; renderer->info.texture_formats[renderer->info.num_texture_formats++] = SDL_PIXELFORMAT_IYUV;
renderer->info.texture_formats[renderer->info.num_texture_formats++] = SDL_PIXELFORMAT_NV12;
renderer->info.texture_formats[renderer->info.num_texture_formats++] = SDL_PIXELFORMAT_NV21;
} }
#ifdef __MACOSX__ #ifdef __MACOSX__
@ -611,6 +614,8 @@ convert_format(GL_RenderData *renderdata, Uint32 pixel_format,
break; break;
case SDL_PIXELFORMAT_YV12: case SDL_PIXELFORMAT_YV12:
case SDL_PIXELFORMAT_IYUV: case SDL_PIXELFORMAT_IYUV:
case SDL_PIXELFORMAT_NV12:
case SDL_PIXELFORMAT_NV21:
*internalFormat = GL_LUMINANCE; *internalFormat = GL_LUMINANCE;
*format = GL_LUMINANCE; *format = GL_LUMINANCE;
*type = GL_UNSIGNED_BYTE; *type = GL_UNSIGNED_BYTE;
@ -672,6 +677,11 @@ GL_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture)
/* Need to add size for the U and V planes */ /* Need to add size for the U and V planes */
size += (2 * (texture->h * data->pitch) / 4); size += (2 * (texture->h * data->pitch) / 4);
} }
if (texture->format == SDL_PIXELFORMAT_NV12 ||
texture->format == SDL_PIXELFORMAT_NV21) {
/* Need to add size for the U/V plane */
size += ((texture->h * data->pitch) / 2);
}
data->pixels = SDL_calloc(1, size); data->pixels = SDL_calloc(1, size);
if (!data->pixels) { if (!data->pixels) {
SDL_free(data); SDL_free(data);
@ -801,6 +811,27 @@ GL_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture)
renderdata->glDisable(data->type); renderdata->glDisable(data->type);
} }
if (texture->format == SDL_PIXELFORMAT_NV12 ||
texture->format == SDL_PIXELFORMAT_NV21) {
data->nv12 = SDL_TRUE;
renderdata->glGenTextures(1, &data->utexture);
renderdata->glEnable(data->type);
renderdata->glBindTexture(data->type, data->utexture);
renderdata->glTexParameteri(data->type, GL_TEXTURE_MIN_FILTER,
scaleMode);
renderdata->glTexParameteri(data->type, GL_TEXTURE_MAG_FILTER,
scaleMode);
renderdata->glTexParameteri(data->type, GL_TEXTURE_WRAP_S,
GL_CLAMP_TO_EDGE);
renderdata->glTexParameteri(data->type, GL_TEXTURE_WRAP_T,
GL_CLAMP_TO_EDGE);
renderdata->glTexImage2D(data->type, 0, GL_LUMINANCE_ALPHA, texture_w/2,
texture_h/2, 0, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, NULL);
renderdata->glDisable(data->type);
}
return GL_CheckError("", renderer); return GL_CheckError("", renderer);
} }
@ -848,6 +879,17 @@ GL_UpdateTexture(SDL_Renderer * renderer, SDL_Texture * texture,
rect->w/2, rect->h/2, rect->w/2, rect->h/2,
data->format, data->formattype, pixels); data->format, data->formattype, pixels);
} }
if (data->nv12) {
renderdata->glPixelStorei(GL_UNPACK_ROW_LENGTH, (pitch / 2));
/* Skip to the correct offset into the next texture */
pixels = (const void*)((const Uint8*)pixels + rect->h * pitch);
renderdata->glBindTexture(data->type, data->utexture);
renderdata->glTexSubImage2D(data->type, 0, rect->x/2, rect->y/2,
rect->w/2, rect->h/2,
GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, pixels);
}
renderdata->glDisable(data->type); renderdata->glDisable(data->type);
return GL_CheckError("glTexSubImage2D()", renderer); return GL_CheckError("glTexSubImage2D()", renderer);
@ -1184,15 +1226,10 @@ GL_RenderFillRects(SDL_Renderer * renderer, const SDL_FRect * rects, int count)
} }
static int static int
GL_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture, GL_SetupCopy(SDL_Renderer * renderer, SDL_Texture * texture)
const SDL_Rect * srcrect, const SDL_FRect * dstrect)
{ {
GL_RenderData *data = (GL_RenderData *) renderer->driverdata; GL_RenderData *data = (GL_RenderData *) renderer->driverdata;
GL_TextureData *texturedata = (GL_TextureData *) texture->driverdata; GL_TextureData *texturedata = (GL_TextureData *) texture->driverdata;
GLfloat minx, miny, maxx, maxy;
GLfloat minu, maxu, minv, maxv;
GL_ActivateRenderer(renderer);
data->glEnable(texturedata->type); data->glEnable(texturedata->type);
if (texturedata->yuv) { if (texturedata->yuv) {
@ -1204,6 +1241,12 @@ GL_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,
data->glActiveTextureARB(GL_TEXTURE0_ARB); data->glActiveTextureARB(GL_TEXTURE0_ARB);
} }
if (texturedata->nv12) {
data->glActiveTextureARB(GL_TEXTURE1_ARB);
data->glBindTexture(texturedata->type, texturedata->utexture);
data->glActiveTextureARB(GL_TEXTURE0_ARB);
}
data->glBindTexture(texturedata->type, texturedata->texture); data->glBindTexture(texturedata->type, texturedata->texture);
if (texture->modMode) { if (texture->modMode) {
@ -1215,10 +1258,33 @@ GL_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,
GL_SetBlendMode(data, texture->blendMode); GL_SetBlendMode(data, texture->blendMode);
if (texturedata->yuv) { if (texturedata->yuv) {
GL_SetShader(data, SHADER_YV12); GL_SetShader(data, SHADER_YUV);
} else if (texturedata->nv12) {
if (texture->format == SDL_PIXELFORMAT_NV12) {
GL_SetShader(data, SHADER_NV12);
} else {
GL_SetShader(data, SHADER_NV21);
}
} else { } else {
GL_SetShader(data, SHADER_RGB); GL_SetShader(data, SHADER_RGB);
} }
return 0;
}
static int
GL_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,
const SDL_Rect * srcrect, const SDL_FRect * dstrect)
{
GL_RenderData *data = (GL_RenderData *) renderer->driverdata;
GL_TextureData *texturedata = (GL_TextureData *) texture->driverdata;
GLfloat minx, miny, maxx, maxy;
GLfloat minu, maxu, minv, maxv;
GL_ActivateRenderer(renderer);
if (GL_SetupCopy(renderer, texture) < 0) {
return -1;
}
minx = dstrect->x; minx = dstrect->x;
miny = dstrect->y; miny = dstrect->y;
@ -1263,30 +1329,8 @@ GL_RenderCopyEx(SDL_Renderer * renderer, SDL_Texture * texture,
GL_ActivateRenderer(renderer); GL_ActivateRenderer(renderer);
data->glEnable(texturedata->type); if (GL_SetupCopy(renderer, texture) < 0) {
if (texturedata->yuv) { return -1;
data->glActiveTextureARB(GL_TEXTURE2_ARB);
data->glBindTexture(texturedata->type, texturedata->vtexture);
data->glActiveTextureARB(GL_TEXTURE1_ARB);
data->glBindTexture(texturedata->type, texturedata->utexture);
data->glActiveTextureARB(GL_TEXTURE0_ARB);
}
data->glBindTexture(texturedata->type, texturedata->texture);
if (texture->modMode) {
GL_SetColor(data, texture->r, texture->g, texture->b, texture->a);
} else {
GL_SetColor(data, 255, 255, 255, 255);
}
GL_SetBlendMode(data, texture->blendMode);
if (texturedata->yuv) {
GL_SetShader(data, SHADER_YV12);
} else {
GL_SetShader(data, SHADER_RGB);
} }
centerx = center->x; centerx = center->x;

102
src/render/opengl/SDL_shaders_gl.c
View file

@ -113,7 +113,7 @@ static const char *shader_source[NUM_SHADERS][2] =
"}" "}"
}, },
/* SHADER_YV12 */ /* SHADER_YUV */
{ {
/* vertex shader */ /* vertex shader */
"varying vec4 v_color;\n" "varying vec4 v_color;\n"
@ -162,6 +162,106 @@ static const char *shader_source[NUM_SHADERS][2] =
"\n" "\n"
" // That was easy. :) \n" " // That was easy. :) \n"
" gl_FragColor = vec4(rgb, 1.0) * v_color;\n" " gl_FragColor = vec4(rgb, 1.0) * v_color;\n"
"}"
},
/* SHADER_NV12 */
{
/* vertex shader */
"varying vec4 v_color;\n"
"varying vec2 v_texCoord;\n"
"\n"
"void main()\n"
"{\n"
" gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;\n"
" v_color = gl_Color;\n"
" v_texCoord = vec2(gl_MultiTexCoord0);\n"
"}",
/* fragment shader */
"varying vec4 v_color;\n"
"varying vec2 v_texCoord;\n"
"uniform sampler2D tex0; // Y \n"
"uniform sampler2D tex1; // U/V \n"
"\n"
"// YUV offset \n"
"const vec3 offset = vec3(-0.0627451017, -0.501960814, -0.501960814);\n"
"\n"
"// RGB coefficients \n"
"const vec3 Rcoeff = vec3(1.164, 0.000, 1.596);\n"
"const vec3 Gcoeff = vec3(1.164, -0.391, -0.813);\n"
"const vec3 Bcoeff = vec3(1.164, 2.018, 0.000);\n"
"\n"
"void main()\n"
"{\n"
" vec2 tcoord;\n"
" vec3 yuv, rgb;\n"
"\n"
" // Get the Y value \n"
" tcoord = v_texCoord;\n"
" yuv.x = texture2D(tex0, tcoord).r;\n"
"\n"
" // Get the U and V values \n"
" tcoord *= 0.5;\n"
" yuv.yz = texture2D(tex1, tcoord).ra;\n"
"\n"
" // Do the color transform \n"
" yuv += offset;\n"
" rgb.r = dot(yuv, Rcoeff);\n"
" rgb.g = dot(yuv, Gcoeff);\n"
" rgb.b = dot(yuv, Bcoeff);\n"
"\n"
" // That was easy. :) \n"
" gl_FragColor = vec4(rgb, 1.0) * v_color;\n"
"}"
},
/* SHADER_NV21 */
{
/* vertex shader */
"varying vec4 v_color;\n"
"varying vec2 v_texCoord;\n"
"\n"
"void main()\n"
"{\n"
" gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;\n"
" v_color = gl_Color;\n"
" v_texCoord = vec2(gl_MultiTexCoord0);\n"
"}",
/* fragment shader */
"varying vec4 v_color;\n"
"varying vec2 v_texCoord;\n"
"uniform sampler2D tex0; // Y \n"
"uniform sampler2D tex1; // U/V \n"
"\n"
"// YUV offset \n"
"const vec3 offset = vec3(-0.0627451017, -0.501960814, -0.501960814);\n"
"\n"
"// RGB coefficients \n"
"const vec3 Rcoeff = vec3(1.164, 0.000, 1.596);\n"
"const vec3 Gcoeff = vec3(1.164, -0.391, -0.813);\n"
"const vec3 Bcoeff = vec3(1.164, 2.018, 0.000);\n"
"\n"
"void main()\n"
"{\n"
" vec2 tcoord;\n"
" vec3 yuv, rgb;\n"
"\n"
" // Get the Y value \n"
" tcoord = v_texCoord;\n"
" yuv.x = texture2D(tex0, tcoord).r;\n"
"\n"
" // Get the U and V values \n"
" tcoord *= 0.5;\n"
" yuv.yz = texture2D(tex1, tcoord).ar;\n"
"\n"
" // Do the color transform \n"
" yuv += offset;\n"
" rgb.r = dot(yuv, Rcoeff);\n"
" rgb.g = dot(yuv, Gcoeff);\n"
" rgb.b = dot(yuv, Bcoeff);\n"
"\n"
" // That was easy. :) \n"
" gl_FragColor = vec4(rgb, 1.0) * v_color;\n"
"}" "}"
}, },
}; };

4
src/render/opengl/SDL_shaders_gl.h
View file

@ -26,7 +26,9 @@ typedef enum {
SHADER_NONE, SHADER_NONE,
SHADER_SOLID, SHADER_SOLID,
SHADER_RGB, SHADER_RGB,
SHADER_YV12, SHADER_YUV,
SHADER_NV12,
SHADER_NV21,
NUM_SHADERS NUM_SHADERS
} GL_Shader; } GL_Shader;

233
src/render/opengles2/SDL_render_gles2.c
View file

@ -81,8 +81,9 @@ typedef struct GLES2_TextureData
GLenum pixel_type; GLenum pixel_type;
void *pixel_data; void *pixel_data;
int pitch; int pitch;
/* YV12 texture support */ /* YUV texture support */
SDL_bool yuv; SDL_bool yuv;
SDL_bool nv12;
GLenum texture_v; GLenum texture_v;
GLenum texture_u; GLenum texture_u;
GLES2_FBOList *fbo; GLES2_FBOList *fbo;
@ -151,7 +152,9 @@ typedef enum
GLES2_IMAGESOURCE_TEXTURE_ARGB, GLES2_IMAGESOURCE_TEXTURE_ARGB,
GLES2_IMAGESOURCE_TEXTURE_RGB, GLES2_IMAGESOURCE_TEXTURE_RGB,
GLES2_IMAGESOURCE_TEXTURE_BGR, GLES2_IMAGESOURCE_TEXTURE_BGR,
GLES2_IMAGESOURCE_TEXTURE_YUV GLES2_IMAGESOURCE_TEXTURE_YUV,
GLES2_IMAGESOURCE_TEXTURE_NV12,
GLES2_IMAGESOURCE_TEXTURE_NV21
} GLES2_ImageSource; } GLES2_ImageSource;
typedef struct GLES2_DriverContext typedef struct GLES2_DriverContext
@ -488,6 +491,8 @@ GLES2_CreateTexture(SDL_Renderer *renderer, SDL_Texture *texture)
break; break;
case SDL_PIXELFORMAT_IYUV: case SDL_PIXELFORMAT_IYUV:
case SDL_PIXELFORMAT_YV12: case SDL_PIXELFORMAT_YV12:
case SDL_PIXELFORMAT_NV12:
case SDL_PIXELFORMAT_NV21:
format = GL_LUMINANCE; format = GL_LUMINANCE;
type = GL_UNSIGNED_BYTE; type = GL_UNSIGNED_BYTE;
break; break;
@ -505,6 +510,7 @@ GLES2_CreateTexture(SDL_Renderer *renderer, SDL_Texture *texture)
data->pixel_format = format; data->pixel_format = format;
data->pixel_type = type; data->pixel_type = type;
data->yuv = ((texture->format == SDL_PIXELFORMAT_IYUV) || (texture->format == SDL_PIXELFORMAT_YV12)); data->yuv = ((texture->format == SDL_PIXELFORMAT_IYUV) || (texture->format == SDL_PIXELFORMAT_YV12));
data->nv12 = ((texture->format == SDL_PIXELFORMAT_NV12) || (texture->format == SDL_PIXELFORMAT_NV21));
data->texture_u = 0; data->texture_u = 0;
data->texture_v = 0; data->texture_v = 0;
scaleMode = GetScaleQuality(); scaleMode = GetScaleQuality();
@ -518,6 +524,10 @@ GLES2_CreateTexture(SDL_Renderer *renderer, SDL_Texture *texture)
/* Need to add size for the U and V planes */ /* Need to add size for the U and V planes */
size += (2 * (texture->h * data->pitch) / 4); size += (2 * (texture->h * data->pitch) / 4);
} }
if (data->nv12) {
/* Need to add size for the U/V plane */
size += ((texture->h * data->pitch) / 2);
}
data->pixel_data = SDL_calloc(1, size); data->pixel_data = SDL_calloc(1, size);
if (!data->pixel_data) { if (!data->pixel_data) {
SDL_free(data); SDL_free(data);
@ -557,6 +567,23 @@ GLES2_CreateTexture(SDL_Renderer *renderer, SDL_Texture *texture)
} }
} }
if (data->nv12) {
renderdata->glGenTextures(1, &data->texture_u);
if (GL_CheckError("glGenTexures()", renderer) < 0) {
return -1;
}
renderdata->glActiveTexture(GL_TEXTURE1);
renderdata->glBindTexture(data->texture_type, data->texture_u);
renderdata->glTexParameteri(data->texture_type, GL_TEXTURE_MIN_FILTER, scaleMode);
renderdata->glTexParameteri(data->texture_type, GL_TEXTURE_MAG_FILTER, scaleMode);
renderdata->glTexParameteri(data->texture_type, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
renderdata->glTexParameteri(data->texture_type, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
renderdata->glTexImage2D(data->texture_type, 0, GL_LUMINANCE_ALPHA, texture->w / 2, texture->h / 2, 0, GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, NULL);
if (GL_CheckError("glTexImage2D()", renderer) < 0) {
return -1;
}
}
renderdata->glGenTextures(1, &data->texture); renderdata->glGenTextures(1, &data->texture);
if (GL_CheckError("glGenTexures()", renderer) < 0) { if (GL_CheckError("glGenTexures()", renderer) < 0) {
return -1; return -1;
@ -673,6 +700,20 @@ GLES2_UpdateTexture(SDL_Renderer *renderer, SDL_Texture *texture, const SDL_Rect
pixels, pitch / 2, 1); pixels, pitch / 2, 1);
} }
if (tdata->nv12) {
/* Skip to the correct offset into the next texture */
pixels = (const void*)((const Uint8*)pixels + rect->h * pitch);
data->glBindTexture(tdata->texture_type, tdata->texture_u);
GLES2_TexSubImage2D(data, tdata->texture_type,
rect->x / 2,
rect->y / 2,
rect->w / 2,
rect->h / 2,
GL_LUMINANCE_ALPHA,
GL_UNSIGNED_BYTE,
pixels, pitch, 2);
}
return GL_CheckError("glTexSubImage2D()", renderer); return GL_CheckError("glTexSubImage2D()", renderer);
} }
@ -1093,6 +1134,12 @@ GLES2_SelectProgram(SDL_Renderer *renderer, GLES2_ImageSource source, SDL_BlendM
case GLES2_IMAGESOURCE_TEXTURE_YUV: case GLES2_IMAGESOURCE_TEXTURE_YUV:
ftype = GLES2_SHADER_FRAGMENT_TEXTURE_YUV_SRC; ftype = GLES2_SHADER_FRAGMENT_TEXTURE_YUV_SRC;
break; break;
case GLES2_IMAGESOURCE_TEXTURE_NV12:
ftype = GLES2_SHADER_FRAGMENT_TEXTURE_NV12_SRC;
break;
case GLES2_IMAGESOURCE_TEXTURE_NV21:
ftype = GLES2_SHADER_FRAGMENT_TEXTURE_NV21_SRC;
break;
default: default:
goto fault; goto fault;
} }
@ -1432,20 +1479,15 @@ GLES2_RenderFillRects(SDL_Renderer *renderer, const SDL_FRect *rects, int count)
} }
static int static int
GLES2_RenderCopy(SDL_Renderer *renderer, SDL_Texture *texture, const SDL_Rect *srcrect, GLES2_SetupCopy(SDL_Renderer *renderer, SDL_Texture *texture)
const SDL_FRect *dstrect)
{ {
GLES2_DriverContext *data = (GLES2_DriverContext *)renderer->driverdata; GLES2_DriverContext *data = (GLES2_DriverContext *)renderer->driverdata;
GLES2_TextureData *tdata = (GLES2_TextureData *)texture->driverdata; GLES2_TextureData *tdata = (GLES2_TextureData *)texture->driverdata;
GLES2_ImageSource sourceType = GLES2_IMAGESOURCE_TEXTURE_ABGR; GLES2_ImageSource sourceType = GLES2_IMAGESOURCE_TEXTURE_ABGR;
SDL_BlendMode blendMode; SDL_BlendMode blendMode;
GLfloat vertices[8];
GLfloat texCoords[8];
GLES2_ProgramCacheEntry *program; GLES2_ProgramCacheEntry *program;
Uint8 r, g, b, a; Uint8 r, g, b, a;
GLES2_ActivateRenderer(renderer);
/* Activate an appropriate shader and set the projection matrix */ /* Activate an appropriate shader and set the projection matrix */
blendMode = texture->blendMode; blendMode = texture->blendMode;
if (renderer->target) { if (renderer->target) {
@ -1505,11 +1547,22 @@ GLES2_RenderCopy(SDL_Renderer *renderer, SDL_Texture *texture, const SDL_Rect *s
break; break;
} }
break; break;
case SDL_PIXELFORMAT_IYUV:
case SDL_PIXELFORMAT_YV12:
sourceType = GLES2_IMAGESOURCE_TEXTURE_YUV;
break;
case SDL_PIXELFORMAT_NV12:
sourceType = GLES2_IMAGESOURCE_TEXTURE_NV12;
break;
case SDL_PIXELFORMAT_NV21:
sourceType = GLES2_IMAGESOURCE_TEXTURE_NV21;
break;
default:
return SDL_SetError("Unsupported texture format");
} }
} }
else sourceType = GLES2_IMAGESOURCE_TEXTURE_ABGR; /* Texture formats match, use the non color mapping shader (even if the formats are not ABGR) */ else sourceType = GLES2_IMAGESOURCE_TEXTURE_ABGR; /* Texture formats match, use the non color mapping shader (even if the formats are not ABGR) */
} } else {
else {
switch (texture->format) switch (texture->format)
{ {
case SDL_PIXELFORMAT_ARGB8888: case SDL_PIXELFORMAT_ARGB8888:
@ -1524,13 +1577,18 @@ GLES2_RenderCopy(SDL_Renderer *renderer, SDL_Texture *texture, const SDL_Rect *s
case SDL_PIXELFORMAT_BGR888: case SDL_PIXELFORMAT_BGR888:
sourceType = GLES2_IMAGESOURCE_TEXTURE_BGR; sourceType = GLES2_IMAGESOURCE_TEXTURE_BGR;
break; break;
// TODO: new shader to change yv planes YV12 format
case SDL_PIXELFORMAT_IYUV: case SDL_PIXELFORMAT_IYUV:
case SDL_PIXELFORMAT_YV12: case SDL_PIXELFORMAT_YV12:
sourceType = GLES2_IMAGESOURCE_TEXTURE_YUV; sourceType = GLES2_IMAGESOURCE_TEXTURE_YUV;
break; break;
case SDL_PIXELFORMAT_NV12:
sourceType = GLES2_IMAGESOURCE_TEXTURE_NV12;
break;
case SDL_PIXELFORMAT_NV21:
sourceType = GLES2_IMAGESOURCE_TEXTURE_NV21;
break;
default: default:
return -1; return SDL_SetError("Unsupported texture format");
} }
} }
@ -1548,6 +1606,12 @@ GLES2_RenderCopy(SDL_Renderer *renderer, SDL_Texture *texture, const SDL_Rect *s
data->glActiveTexture(GL_TEXTURE0); data->glActiveTexture(GL_TEXTURE0);
} }
if (tdata->nv12) {
data->glActiveTexture(GL_TEXTURE1);
data->glBindTexture(tdata->texture_type, tdata->texture_u);
data->glActiveTexture(GL_TEXTURE0);
}
data->glBindTexture(tdata->texture_type, tdata->texture); data->glBindTexture(tdata->texture_type, tdata->texture);
/* Configure color modulation */ /* Configure color modulation */
@ -1578,6 +1642,23 @@ GLES2_RenderCopy(SDL_Renderer *renderer, SDL_Texture *texture, const SDL_Rect *s
GLES2_SetBlendMode(data, blendMode); GLES2_SetBlendMode(data, blendMode);
GLES2_SetTexCoords(data, SDL_TRUE); GLES2_SetTexCoords(data, SDL_TRUE);
return 0;
}
static int
GLES2_RenderCopy(SDL_Renderer *renderer, SDL_Texture *texture, const SDL_Rect *srcrect,
const SDL_FRect *dstrect)
{
GLES2_DriverContext *data = (GLES2_DriverContext *)renderer->driverdata;
GLES2_TextureData *tdata = (GLES2_TextureData *)texture->driverdata;
GLfloat vertices[8];
GLfloat texCoords[8];
GLES2_ActivateRenderer(renderer);
if (GLES2_SetupCopy(renderer, texture) < 0) {
return -1;
}
/* Emit the textured quad */ /* Emit the textured quad */
vertices[0] = dstrect->x; vertices[0] = dstrect->x;
@ -1609,10 +1690,6 @@ GLES2_RenderCopyEx(SDL_Renderer *renderer, SDL_Texture *texture, const SDL_Rect
{ {
GLES2_DriverContext *data = (GLES2_DriverContext *)renderer->driverdata; GLES2_DriverContext *data = (GLES2_DriverContext *)renderer->driverdata;
GLES2_TextureData *tdata = (GLES2_TextureData *)texture->driverdata; GLES2_TextureData *tdata = (GLES2_TextureData *)texture->driverdata;
GLES2_ImageSource sourceType = GLES2_IMAGESOURCE_TEXTURE_ABGR;
GLES2_ProgramCacheEntry *program;
Uint8 r, g, b, a;
SDL_BlendMode blendMode;
GLfloat vertices[8]; GLfloat vertices[8];
GLfloat texCoords[8]; GLfloat texCoords[8];
GLfloat translate[8]; GLfloat translate[8];
@ -1621,6 +1698,10 @@ GLES2_RenderCopyEx(SDL_Renderer *renderer, SDL_Texture *texture, const SDL_Rect
GLES2_ActivateRenderer(renderer); GLES2_ActivateRenderer(renderer);
if (GLES2_SetupCopy(renderer, texture) < 0) {
return -1;
}
data->glEnableVertexAttribArray(GLES2_ATTRIBUTE_CENTER); data->glEnableVertexAttribArray(GLES2_ATTRIBUTE_CENTER);
data->glEnableVertexAttribArray(GLES2_ATTRIBUTE_ANGLE); data->glEnableVertexAttribArray(GLES2_ATTRIBUTE_ANGLE);
fAngle[0] = fAngle[1] = fAngle[2] = fAngle[3] = (GLfloat)(360.0f - angle); fAngle[0] = fAngle[1] = fAngle[2] = fAngle[3] = (GLfloat)(360.0f - angle);
@ -1628,124 +1709,6 @@ GLES2_RenderCopyEx(SDL_Renderer *renderer, SDL_Texture *texture, const SDL_Rect
translate[0] = translate[2] = translate[4] = translate[6] = (center->x + dstrect->x); translate[0] = translate[2] = translate[4] = translate[6] = (center->x + dstrect->x);
translate[1] = translate[3] = translate[5] = translate[7] = (center->y + dstrect->y); translate[1] = translate[3] = translate[5] = translate[7] = (center->y + dstrect->y);
/* Activate an appropriate shader and set the projection matrix */
blendMode = texture->blendMode;
if (renderer->target) {
/* Check if we need to do color mapping between the source and render target textures */
if (renderer->target->format != texture->format) {
switch (texture->format)
{
case SDL_PIXELFORMAT_ARGB8888:
switch (renderer->target->format)
{
case SDL_PIXELFORMAT_ABGR8888:
case SDL_PIXELFORMAT_BGR888:
sourceType = GLES2_IMAGESOURCE_TEXTURE_ARGB;
break;
case SDL_PIXELFORMAT_RGB888:
sourceType = GLES2_IMAGESOURCE_TEXTURE_ABGR;
break;
}
break;
case SDL_PIXELFORMAT_ABGR8888:
switch (renderer->target->format)
{
case SDL_PIXELFORMAT_ARGB8888:
case SDL_PIXELFORMAT_RGB888:
sourceType = GLES2_IMAGESOURCE_TEXTURE_ARGB;
break;
case SDL_PIXELFORMAT_BGR888:
sourceType = GLES2_IMAGESOURCE_TEXTURE_ABGR;
break;
}
break;
case SDL_PIXELFORMAT_RGB888:
switch (renderer->target->format)
{
case SDL_PIXELFORMAT_ABGR8888:
sourceType = GLES2_IMAGESOURCE_TEXTURE_ARGB;
break;
case SDL_PIXELFORMAT_ARGB8888:
sourceType = GLES2_IMAGESOURCE_TEXTURE_BGR;
break;
case SDL_PIXELFORMAT_BGR888:
sourceType = GLES2_IMAGESOURCE_TEXTURE_ARGB;
break;
}
break;
case SDL_PIXELFORMAT_BGR888:
switch (renderer->target->format)
{
case SDL_PIXELFORMAT_ABGR8888:
sourceType = GLES2_IMAGESOURCE_TEXTURE_BGR;
break;
case SDL_PIXELFORMAT_ARGB8888:
sourceType = GLES2_IMAGESOURCE_TEXTURE_RGB;
break;
case SDL_PIXELFORMAT_RGB888:
sourceType = GLES2_IMAGESOURCE_TEXTURE_ARGB;
break;
}
break;
}
}
else sourceType = GLES2_IMAGESOURCE_TEXTURE_ABGR; /* Texture formats match, use the non color mapping shader (even if the formats are not ABGR) */
}
else {
switch (texture->format)
{
case SDL_PIXELFORMAT_ARGB8888:
sourceType = GLES2_IMAGESOURCE_TEXTURE_ARGB;
break;
case SDL_PIXELFORMAT_ABGR8888:
sourceType = GLES2_IMAGESOURCE_TEXTURE_ABGR;
break;
case SDL_PIXELFORMAT_RGB888:
sourceType = GLES2_IMAGESOURCE_TEXTURE_RGB;
break;
case SDL_PIXELFORMAT_BGR888:
sourceType = GLES2_IMAGESOURCE_TEXTURE_BGR;
break;
default:
return -1;
}
}
if (GLES2_SelectProgram(renderer, sourceType, blendMode) < 0)
return -1;
/* Select the target texture */
data->glBindTexture(tdata->texture_type, tdata->texture);
/* Configure color modulation */
/* !!! FIXME: grep for glUniform4f(), move that stuff to a subroutine, it's a lot of copy/paste. */
g = texture->g;
a = texture->a;
if (renderer->target &&
(renderer->target->format == SDL_PIXELFORMAT_ARGB8888 ||
renderer->target->format == SDL_PIXELFORMAT_RGB888)) {
r = texture->b;
b = texture->r;
} else {
r = texture->r;
b = texture->b;
}
program = data->current_program;
if (!CompareColors(program->modulation_r, program->modulation_g, program->modulation_b, program->modulation_a, r, g, b, a)) {
data->glUniform4f(program->uniform_locations[GLES2_UNIFORM_MODULATION], r * inv255f, g * inv255f, b * inv255f, a * inv255f);
program->modulation_r = r;
program->modulation_g = g;
program->modulation_b = b;
program->modulation_a = a;
}
/* Configure texture blending */
GLES2_SetBlendMode(data, blendMode);
GLES2_SetTexCoords(data, SDL_TRUE);
/* Emit the textured quad */ /* Emit the textured quad */
vertices[0] = dstrect->x; vertices[0] = dstrect->x;
vertices[1] = dstrect->y; vertices[1] = dstrect->y;
@ -2066,6 +2029,8 @@ GLES2_CreateRenderer(SDL_Window *window, Uint32 flags)
renderer->info.texture_formats[renderer->info.num_texture_formats++] = SDL_PIXELFORMAT_YV12; renderer->info.texture_formats[renderer->info.num_texture_formats++] = SDL_PIXELFORMAT_YV12;
renderer->info.texture_formats[renderer->info.num_texture_formats++] = SDL_PIXELFORMAT_IYUV; renderer->info.texture_formats[renderer->info.num_texture_formats++] = SDL_PIXELFORMAT_IYUV;
renderer->info.texture_formats[renderer->info.num_texture_formats++] = SDL_PIXELFORMAT_NV12;
renderer->info.texture_formats[renderer->info.num_texture_formats++] = SDL_PIXELFORMAT_NV21;
GLES2_ResetState(renderer); GLES2_ResetState(renderer);

82
src/render/opengles2/SDL_shaders_gles2.c
View file

@ -150,6 +150,50 @@ static const Uint8 GLES2_FragmentSrc_TextureYUVSrc_[] = " \
} \ } \
"; ";
/* NV12 to ABGR conversion */
static const Uint8 GLES2_FragmentSrc_TextureNV12Src_[] = " \
precision mediump float; \
uniform sampler2D u_texture; \
uniform sampler2D u_texture_u; \
uniform vec4 u_modulation; \
varying vec2 v_texCoord; \
\
void main() \
{ \
mediump vec3 yuv; \
lowp vec3 rgb; \
yuv.x = texture2D(u_texture, v_texCoord).r; \
yuv.yz = texture2D(u_texture_u, v_texCoord).ra - 0.5; \
rgb = mat3( 1, 1, 1, \
0, -0.39465, 2.03211, \
1.13983, -0.58060, 0) * yuv; \
gl_FragColor = vec4(rgb, 1); \
gl_FragColor *= u_modulation; \
} \
";
/* NV21 to ABGR conversion */
static const Uint8 GLES2_FragmentSrc_TextureNV21Src_[] = " \
precision mediump float; \
uniform sampler2D u_texture; \
uniform sampler2D u_texture_u; \
uniform vec4 u_modulation; \
varying vec2 v_texCoord; \
\
void main() \
{ \
mediump vec3 yuv; \
lowp vec3 rgb; \
yuv.x = texture2D(u_texture, v_texCoord).r; \
yuv.yz = texture2D(u_texture_u, v_texCoord).ar - 0.5; \
rgb = mat3( 1, 1, 1, \
0, -0.39465, 2.03211, \
1.13983, -0.58060, 0) * yuv; \
gl_FragColor = vec4(rgb, 1); \
gl_FragColor *= u_modulation; \
} \
";
static const GLES2_ShaderInstance GLES2_VertexSrc_Default = { static const GLES2_ShaderInstance GLES2_VertexSrc_Default = {
GL_VERTEX_SHADER, GL_VERTEX_SHADER,
GLES2_SOURCE_SHADER, GLES2_SOURCE_SHADER,
@ -199,6 +243,20 @@ static const GLES2_ShaderInstance GLES2_FragmentSrc_TextureYUVSrc = {
GLES2_FragmentSrc_TextureYUVSrc_ GLES2_FragmentSrc_TextureYUVSrc_
}; };
static const GLES2_ShaderInstance GLES2_FragmentSrc_TextureNV12Src = {
GL_FRAGMENT_SHADER,
GLES2_SOURCE_SHADER,
sizeof(GLES2_FragmentSrc_TextureNV12Src_),
GLES2_FragmentSrc_TextureNV12Src_
};
static const GLES2_ShaderInstance GLES2_FragmentSrc_TextureNV21Src = {
GL_FRAGMENT_SHADER,
GLES2_SOURCE_SHADER,
sizeof(GLES2_FragmentSrc_TextureNV21Src_),
GLES2_FragmentSrc_TextureNV21Src_
};
/************************************************************************************************* /*************************************************************************************************
* Vertex/fragment shader binaries (NVIDIA Tegra 1/2) * * Vertex/fragment shader binaries (NVIDIA Tegra 1/2) *
@ -731,6 +789,20 @@ static GLES2_Shader GLES2_FragmentShader_TextureYUVSrc = {
} }
}; };
static GLES2_Shader GLES2_FragmentShader_TextureNV12Src = {
1,
{
&GLES2_FragmentSrc_TextureNV12Src
}
};
static GLES2_Shader GLES2_FragmentShader_TextureNV21Src = {
1,
{
&GLES2_FragmentSrc_TextureNV21Src
}
};
/************************************************************************************************* /*************************************************************************************************
* Shader selector * * Shader selector *
@ -820,6 +892,16 @@ const GLES2_Shader *GLES2_GetShader(GLES2_ShaderType type, SDL_BlendMode blendMo
return &GLES2_FragmentShader_TextureYUVSrc; return &GLES2_FragmentShader_TextureYUVSrc;
} }
case GLES2_SHADER_FRAGMENT_TEXTURE_NV12_SRC:
{
return &GLES2_FragmentShader_TextureNV12Src;
}
case GLES2_SHADER_FRAGMENT_TEXTURE_NV21_SRC:
{
return &GLES2_FragmentShader_TextureNV21Src;
}
default: default:
return NULL; return NULL;
} }

4
src/render/opengles2/SDL_shaders_gles2.h
View file

@ -47,7 +47,9 @@ typedef enum
GLES2_SHADER_FRAGMENT_TEXTURE_ARGB_SRC, GLES2_SHADER_FRAGMENT_TEXTURE_ARGB_SRC,
GLES2_SHADER_FRAGMENT_TEXTURE_BGR_SRC, GLES2_SHADER_FRAGMENT_TEXTURE_BGR_SRC,
GLES2_SHADER_FRAGMENT_TEXTURE_RGB_SRC, GLES2_SHADER_FRAGMENT_TEXTURE_RGB_SRC,
GLES2_SHADER_FRAGMENT_TEXTURE_YUV_SRC GLES2_SHADER_FRAGMENT_TEXTURE_YUV_SRC,
GLES2_SHADER_FRAGMENT_TEXTURE_NV12_SRC,
GLES2_SHADER_FRAGMENT_TEXTURE_NV21_SRC
} GLES2_ShaderType; } GLES2_ShaderType;
#define GLES2_SOURCE_SHADER (GLenum)-1 #define GLES2_SOURCE_SHADER (GLenum)-1

6
src/test/SDL_test_common.c
View file

@ -572,6 +572,12 @@ SDLTest_PrintPixelFormat(Uint32 format)
case SDL_PIXELFORMAT_YVYU: case SDL_PIXELFORMAT_YVYU:
fprintf(stderr, "YVYU"); fprintf(stderr, "YVYU");
break; break;
case SDL_PIXELFORMAT_NV12:
fprintf(stderr, "NV12");
break;
case SDL_PIXELFORMAT_NV21:
fprintf(stderr, "NV21");
break;
default: default:
fprintf(stderr, "0x%8.8x", format); fprintf(stderr, "0x%8.8x", format);
break; break;

2
src/video/SDL_pixels.c
View file

@ -122,6 +122,8 @@ SDL_GetPixelFormatName(Uint32 format)
CASE(SDL_PIXELFORMAT_YUY2) CASE(SDL_PIXELFORMAT_YUY2)
CASE(SDL_PIXELFORMAT_UYVY) CASE(SDL_PIXELFORMAT_UYVY)
CASE(SDL_PIXELFORMAT_YVYU) CASE(SDL_PIXELFORMAT_YVYU)
CASE(SDL_PIXELFORMAT_NV12)
CASE(SDL_PIXELFORMAT_NV21)
#undef CASE #undef CASE
default: default:
return "SDL_PIXELFORMAT_UNKNOWN"; return "SDL_PIXELFORMAT_UNKNOWN";

35
src/video/SDL_surface.c
View file

@ -1005,7 +1005,7 @@ int SDL_ConvertPixels(int width, int height,
SDL_Rect rect; SDL_Rect rect;
void *nonconst_src = (void *) src; void *nonconst_src = (void *) src;
/* Check to make sure we are bliting somewhere, so we don't crash */ /* Check to make sure we are blitting somewhere, so we don't crash */
if (!dst) { if (!dst) {
return SDL_InvalidParamError("dst"); return SDL_InvalidParamError("dst");
} }
@ -1015,17 +1015,21 @@ int SDL_ConvertPixels(int width, int height,
/* Fast path for same format copy */ /* Fast path for same format copy */
if (src_format == dst_format) { if (src_format == dst_format) {
int bpp; int bpp, i;
if (SDL_ISPIXELFORMAT_FOURCC(src_format)) { if (SDL_ISPIXELFORMAT_FOURCC(src_format)) {
switch (src_format) { switch (src_format) {
case SDL_PIXELFORMAT_YV12:
case SDL_PIXELFORMAT_IYUV:
case SDL_PIXELFORMAT_YUY2: case SDL_PIXELFORMAT_YUY2:
case SDL_PIXELFORMAT_UYVY: case SDL_PIXELFORMAT_UYVY:
case SDL_PIXELFORMAT_YVYU: case SDL_PIXELFORMAT_YVYU:
bpp = 2; bpp = 2;
break; break;
case SDL_PIXELFORMAT_YV12:
case SDL_PIXELFORMAT_IYUV:
case SDL_PIXELFORMAT_NV12:
case SDL_PIXELFORMAT_NV21:
bpp = 1;
break;
default: default:
return SDL_SetError("Unknown FOURCC pixel format"); return SDL_SetError("Unknown FOURCC pixel format");
} }
@ -1034,11 +1038,32 @@ int SDL_ConvertPixels(int width, int height,
} }
width *= bpp; width *= bpp;
while (height-- > 0) { for (i = height; i--;) {
SDL_memcpy(dst, src, width); SDL_memcpy(dst, src, width);
src = (Uint8*)src + src_pitch; src = (Uint8*)src + src_pitch;
dst = (Uint8*)dst + dst_pitch; dst = (Uint8*)dst + dst_pitch;
} }
if (src_format == SDL_PIXELFORMAT_YV12 || src_format == SDL_PIXELFORMAT_IYUV) {
/* U and V planes are a quarter the size of the Y plane */
width /= 2;
height /= 2;
src_pitch /= 2;
dst_pitch /= 2;
for (i = height * 2; i--;) {
SDL_memcpy(dst, src, width);
src = (Uint8*)src + src_pitch;
dst = (Uint8*)dst + dst_pitch;
}
} else if (src_format == SDL_PIXELFORMAT_NV12 || src_format == SDL_PIXELFORMAT_NV21) {
/* U/V plane is half the height of the Y plane */
height /= 2;
for (i = height; i--;) {
SDL_memcpy(dst, src, width);
src = (Uint8*)src + src_pitch;
dst = (Uint8*)dst + dst_pitch;
}
}
return 0; return 0;
} }

10
test/testautomation_pixels.c
View file

@ -79,14 +79,16 @@ char* _RGBPixelFormatsVerbose[] =
}; };
/* Definition of all Non-RGB formats used to test pixel conversions */ /* Definition of all Non-RGB formats used to test pixel conversions */
const int _numNonRGBPixelFormats = 5; const int _numNonRGBPixelFormats = 7;
Uint32 _nonRGBPixelFormats[] = Uint32 _nonRGBPixelFormats[] =
{ {
SDL_PIXELFORMAT_YV12, SDL_PIXELFORMAT_YV12,
SDL_PIXELFORMAT_IYUV, SDL_PIXELFORMAT_IYUV,
SDL_PIXELFORMAT_YUY2, SDL_PIXELFORMAT_YUY2,
SDL_PIXELFORMAT_UYVY, SDL_PIXELFORMAT_UYVY,
SDL_PIXELFORMAT_YVYU SDL_PIXELFORMAT_YVYU,
SDL_PIXELFORMAT_NV12,
SDL_PIXELFORMAT_NV21
}; };
char* _nonRGBPixelFormatsVerbose[] = char* _nonRGBPixelFormatsVerbose[] =
{ {
@ -94,7 +96,9 @@ char* _nonRGBPixelFormatsVerbose[] =
"SDL_PIXELFORMAT_IYUV", "SDL_PIXELFORMAT_IYUV",
"SDL_PIXELFORMAT_YUY2", "SDL_PIXELFORMAT_YUY2",
"SDL_PIXELFORMAT_UYVY", "SDL_PIXELFORMAT_UYVY",
"SDL_PIXELFORMAT_YVYU" "SDL_PIXELFORMAT_YVYU",
"SDL_PIXELFORMAT_NV12",
"SDL_PIXELFORMAT_NV21"
}; };
/* Definition of some invalid formats for negative tests */ /* Definition of some invalid formats for negative tests */

37
test/testoverlay2.c
View file

@ -206,6 +206,29 @@ ConvertRGBtoYV12(Uint8 *rgb, Uint8 *out, int w, int h,
} }
} }
void
ConvertRGBtoNV12(Uint8 *rgb, Uint8 *out, int w, int h,
int monochrome, int luminance)
{
int x, y;
int yuv[3];
Uint8 *op[2];
op[0] = out;
op[1] = op[0] + w*h;
for (y = 0; y < h; ++y) {
for (x = 0; x < w; ++x) {
RGBtoYUV(rgb, yuv, monochrome, luminance);
*(op[0]++) = yuv[0];
if (x % 2 == 0 && y % 2 == 0) {
*(op[1]++) = yuv[1];
*(op[1]++) = yuv[2];
}
rgb += 3;
}
}
}
static void static void
PrintUsage(char *argv0) PrintUsage(char *argv0)
{ {
@ -241,7 +264,11 @@ main(int argc, char **argv)
int fps = 12; int fps = 12;
int fpsdelay; int fpsdelay;
int nodelay = 0; int nodelay = 0;
#ifdef TEST_NV12
Uint32 pixel_format = SDL_PIXELFORMAT_NV12;
#else
Uint32 pixel_format = SDL_PIXELFORMAT_YV12; Uint32 pixel_format = SDL_PIXELFORMAT_YV12;
#endif
int scale = 5; int scale = 5;
SDL_bool done = SDL_FALSE; SDL_bool done = SDL_FALSE;
@ -371,7 +398,17 @@ main(int argc, char **argv)
rgb[2] = MooseColors[frame[j]].b; rgb[2] = MooseColors[frame[j]].b;
rgb += 3; rgb += 3;
} }
switch (pixel_format) {
case SDL_PIXELFORMAT_YV12:
ConvertRGBtoYV12(MooseFrameRGB, MooseFrame[i], MOOSEPIC_W, MOOSEPIC_H, 0, 100); ConvertRGBtoYV12(MooseFrameRGB, MooseFrame[i], MOOSEPIC_W, MOOSEPIC_H, 0, 100);
break;
case SDL_PIXELFORMAT_NV12:
ConvertRGBtoNV12(MooseFrameRGB, MooseFrame[i], MOOSEPIC_W, MOOSEPIC_H, 0, 100);
break;
default:
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Unsupported pixel format\n");
break;
}
} }
free(RawMooseData); free(RawMooseData);