21 #include "../../SDL_internal.h" 23 #if SDL_VIDEO_RENDER_OGL_ES && !SDL_RENDER_DISABLED 27 #include "../SDL_sysrender.h" 33 #define RENDERER_CONTEXT_MAJOR 1 34 #define RENDERER_CONTEXT_MINOR 1 36 #if defined(SDL_VIDEO_DRIVER_PANDORA) 53 static const float inv255f = 1.0f / 255.0f;
93 typedef struct GLES_FBOList GLES_FBOList;
123 #define SDL_PROC(ret,func,params) ret (APIENTRY *func) params; 124 #define SDL_PROC_OES SDL_PROC 128 SDL_bool GL_OES_framebuffer_object_supported;
130 GLuint window_framebuffer;
132 SDL_bool GL_OES_blend_func_separate_supported;
155 error =
"GL_NO_ERROR";
158 error =
"GL_INVALID_ENUM";
161 error =
"GL_INVALID_VALUE";
164 error =
"GL_INVALID_OPERATION";
167 error =
"GL_STACK_OVERFLOW";
170 error =
"GL_STACK_UNDERFLOW";
173 error =
"GL_OUT_OF_MEMORY";
182 static int GLES_LoadFunctions(GLES_RenderData *
data)
184 #if SDL_VIDEO_DRIVER_UIKIT 185 #define __SDL_NOGETPROCADDR__ 186 #elif SDL_VIDEO_DRIVER_ANDROID 187 #define __SDL_NOGETPROCADDR__ 188 #elif SDL_VIDEO_DRIVER_PANDORA 189 #define __SDL_NOGETPROCADDR__ 192 #ifdef __SDL_NOGETPROCADDR__ 193 #define SDL_PROC(ret,func,params) data->func=func; 194 #define SDL_PROC_OES(ret,func,params) data->func=func; 196 #define SDL_PROC(ret,func,params) \ 198 data->func = SDL_GL_GetProcAddress(#func); \ 199 if ( ! data->func ) { \ 200 return SDL_SetError("Couldn't load GLES function %s: %s\n", #func, SDL_GetError()); \ 203 #define SDL_PROC_OES(ret,func,params) \ 205 data->func = SDL_GL_GetProcAddress(#func); \ 220 GLES_FBOList *result = data->framebuffers;
221 while ((result) && ((result->w != w) || (result->h != h)) ) {
222 result = result->next;
224 if (result ==
NULL) {
228 data->glGenFramebuffersOES(1, &result->FBO);
229 result->next = data->framebuffers;
230 data->framebuffers =
result;
239 GLES_RenderData *data = (GLES_RenderData *) renderer->
driverdata;
241 if (SDL_CurrentContext != data->context) {
245 SDL_CurrentContext = data->context;
247 GLES_UpdateViewport(renderer);
256 GLES_RenderData *data = (GLES_RenderData *) renderer->
driverdata;
258 if (SDL_CurrentContext == data->context) {
259 GLES_UpdateViewport(renderer);
261 GLES_ActivateRenderer(renderer);
264 data->current.color = 0;
265 data->current.blendMode = -1;
272 data->glLoadIdentity();
283 GLES_RenderData *
data;
286 int profile_mask = 0, major = 0, minor = 0;
313 data = (GLES_RenderData *)
SDL_calloc(1,
sizeof(*data));
315 GLES_DestroyRenderer(renderer);
341 renderer->
info = GLES_RenderDriver.
info;
347 if (!data->context) {
348 GLES_DestroyRenderer(renderer);
352 GLES_DestroyRenderer(renderer);
356 if (GLES_LoadFunctions(data) < 0) {
357 GLES_DestroyRenderer(renderer);
379 data->GL_OES_framebuffer_object_supported =
SDL_TRUE;
383 data->glGetIntegerv(GL_FRAMEBUFFER_BINDING_OES, &value);
384 data->window_framebuffer = (
GLuint)value;
386 data->framebuffers =
NULL;
389 data->GL_OES_blend_func_separate_supported =
SDL_TRUE;
393 GLES_ResetState(renderer);
398 if (changed_window) {
411 GLES_RenderData *data = (GLES_RenderData *) renderer->
driverdata;
417 SDL_CurrentContext =
NULL;
427 GLES_GetOutputSize(
SDL_Renderer * renderer,
int *w,
int *h)
434 power_of_2(
int input)
438 while (value < input) {
449 if (!hint || *hint ==
'0' ||
SDL_strcasecmp(hint,
"nearest") == 0) {
459 GLES_RenderData *renderdata = (GLES_RenderData *) renderer->
driverdata;
460 GLES_TextureData *data;
463 int texture_w, texture_h;
467 GLES_ActivateRenderer(renderer);
469 switch (texture->
format) {
479 data = (GLES_TextureData *)
SDL_calloc(1,
sizeof(*data));
486 data->pixels =
SDL_calloc(1, texture->
h * data->pitch);
495 if (!renderdata->GL_OES_framebuffer_object_supported) {
497 return SDL_SetError(
"GL_OES_framebuffer_object not supported");
499 data->fbo = GLES_GetFBO(renderer->
driverdata, texture->
w, texture->
h);
505 renderdata->glGetError();
507 renderdata->glGenTextures(1, &data->texture);
508 result = renderdata->glGetError();
511 return GLES_SetError(
"glGenTextures()", result);
516 texture_w = power_of_2(texture->
w);
517 texture_h = power_of_2(texture->
h);
518 data->texw = (
GLfloat) texture->
w / texture_w;
519 data->texh = (
GLfloat) texture->
h / texture_h;
522 data->formattype =
type;
524 renderdata->glBindTexture(data->type, data->texture);
530 renderdata->glTexImage2D(data->type, 0,
internalFormat, texture_w,
534 result = renderdata->glGetError();
537 return GLES_SetError(
"glTexImage2D()", result);
548 GLES_RenderData *renderdata = (GLES_RenderData *) renderer->
driverdata;
549 GLES_TextureData *data = (GLES_TextureData *) texture->
driverdata;
555 GLES_ActivateRenderer(renderer);
558 if (rect->
w <= 0 || rect->
h <= 0) {
564 src = (
Uint8 *)pixels;
565 if (pitch != srcPitch) {
571 for (y = 0; y < rect->
h; ++
y) {
574 pixels = (
Uint8 *)pixels + pitch;
580 renderdata->glGetError();
581 renderdata->glEnable(data->type);
582 renderdata->glBindTexture(data->type, data->texture);
584 renderdata->glTexSubImage2D(data->type,
593 renderdata->glDisable(data->type);
604 const SDL_Rect * rect,
void **pixels,
int *pitch)
606 GLES_TextureData *data = (GLES_TextureData *) texture->
driverdata;
609 (
void *) ((
Uint8 *) data->pixels + rect->
y * data->pitch +
611 *pitch = data->pitch;
618 GLES_TextureData *data = (GLES_TextureData *) texture->
driverdata;
626 GLES_UpdateTexture(renderer, texture, &rect, data->pixels, data->pitch);
632 GLES_RenderData *data = (GLES_RenderData *) renderer->
driverdata;
633 GLES_TextureData *texturedata =
NULL;
636 GLES_ActivateRenderer(renderer);
638 if (!data->GL_OES_framebuffer_object_supported) {
639 return SDL_SetError(
"Can't enable render target support in this renderer");
642 if (texture ==
NULL) {
643 data->glBindFramebufferOES(GL_FRAMEBUFFER_OES, data->window_framebuffer);
647 texturedata = (GLES_TextureData *) texture->
driverdata;
648 data->glBindFramebufferOES(GL_FRAMEBUFFER_OES, texturedata->fbo->FBO);
650 data->glFramebufferTexture2DOES(GL_FRAMEBUFFER_OES, GL_COLOR_ATTACHMENT0_OES, texturedata->type, texturedata->texture, 0);
652 status = data->glCheckFramebufferStatusOES(GL_FRAMEBUFFER_OES);
653 if (status != GL_FRAMEBUFFER_COMPLETE_OES) {
654 return SDL_SetError(
"glFramebufferTexture2DOES() failed");
662 GLES_RenderData *data = (GLES_RenderData *) renderer->
driverdata;
664 if (SDL_CurrentContext != data->context) {
681 data->glLoadIdentity();
703 GLES_RenderData *data = (GLES_RenderData *) renderer->
driverdata;
705 if (SDL_CurrentContext != data->context) {
719 data->glScissor(renderer->
viewport.
x + rect->
x, h - renderer->
viewport.
y - rect->
y - rect->
h, rect->
w, rect->
h);
730 Uint32 color = ((a << 24) | (r << 16) | (g << 8) | b);
732 if (color != data->current.color) {
733 data->glColor4f((
GLfloat) r * inv255f,
737 data->current.color =
color;
742 GLES_SetBlendMode(GLES_RenderData * data,
int blendMode)
744 if (blendMode != data->current.blendMode) {
751 if (data->GL_OES_blend_func_separate_supported) {
759 if (data->GL_OES_blend_func_separate_supported) {
767 if (data->GL_OES_blend_func_separate_supported) {
781 if (enabled != data->current.tex_coords) {
787 data->current.tex_coords =
enabled;
794 GLES_RenderData *data = (GLES_RenderData *) renderer->
driverdata;
796 GLES_ActivateRenderer(renderer);
798 GLES_SetColor(data, (
GLfloat) renderer->
r,
803 GLES_SetBlendMode(data, renderer->
blendMode);
811 GLES_RenderData *data = (GLES_RenderData *) renderer->
driverdata;
813 GLES_ActivateRenderer(renderer);
815 data->glClearColor((
GLfloat) renderer->
r * inv255f,
837 GLES_RenderData *data = (GLES_RenderData *) renderer->
driverdata;
841 GLES_SetDrawingState(renderer);
845 for (idx = 0; idx <
count; ++idx) {
849 vertices[idx * 2] =
x;
850 vertices[(idx * 2) + 1] = y;
853 data->glVertexPointer(2,
GL_FLOAT, 0, vertices);
863 GLES_RenderData *data = (GLES_RenderData *) renderer->
driverdata;
867 GLES_SetDrawingState(renderer);
871 for (idx = 0; idx <
count; ++idx) {
875 vertices[idx * 2] =
x;
876 vertices[(idx * 2) + 1] = y;
879 data->glVertexPointer(2,
GL_FLOAT, 0, vertices);
881 points[0].
x == points[count-1].
x && points[0].y == points[count-1].y) {
888 data->glDrawArrays(
GL_POINTS, count-1, 1);
899 GLES_RenderData *data = (GLES_RenderData *) renderer->
driverdata;
902 GLES_SetDrawingState(renderer);
920 data->glVertexPointer(2,
GL_FLOAT, 0, vertices);
931 GLES_RenderData *data = (GLES_RenderData *) renderer->
driverdata;
932 GLES_TextureData *texturedata = (GLES_TextureData *) texture->
driverdata;
933 GLfloat minx, miny, maxx, maxy;
934 GLfloat minu, maxu, minv, maxv;
938 GLES_ActivateRenderer(renderer);
942 data->glBindTexture(texturedata->type, texturedata->texture);
945 GLES_SetColor(data, texture->
r, texture->
g, texture->
b, texture->
a);
947 GLES_SetColor(data, 255, 255, 255, 255);
950 GLES_SetBlendMode(data, texture->
blendMode);
956 maxx = dstrect->
x + dstrect->
w;
957 maxy = dstrect->
y + dstrect->
h;
959 minu = (
GLfloat) srcrect->
x / texture->
w;
960 minu *= texturedata->texw;
961 maxu = (
GLfloat) (srcrect->
x + srcrect->
w) / texture->
w;
962 maxu *= texturedata->texw;
963 minv = (
GLfloat) srcrect->
y / texture->
h;
964 minv *= texturedata->texh;
965 maxv = (
GLfloat) (srcrect->
y + srcrect->
h) / texture->
h;
966 maxv *= texturedata->texh;
986 data->glVertexPointer(2,
GL_FLOAT, 0, vertices);
987 data->glTexCoordPointer(2,
GL_FLOAT, 0, texCoords);
1001 GLES_RenderData *data = (GLES_RenderData *) renderer->
driverdata;
1002 GLES_TextureData *texturedata = (GLES_TextureData *) texture->
driverdata;
1003 GLfloat minx, miny, maxx, maxy;
1004 GLfloat minu, maxu, minv, maxv;
1010 GLES_ActivateRenderer(renderer);
1014 data->glBindTexture(texturedata->type, texturedata->texture);
1017 GLES_SetColor(data, texture->
r, texture->
g, texture->
b, texture->
a);
1019 GLES_SetColor(data, 255, 255, 255, 255);
1022 GLES_SetBlendMode(data, texture->
blendMode);
1026 centerx = center->
x;
1027 centery = center->
y;
1030 data->glPushMatrix();
1031 data->glTranslatef(dstrect->
x + centerx, dstrect->
y + centery, 0.0f);
1032 data->glRotatef((
GLfloat)angle, 0.0
f, 0.0
f, 1.0
f);
1035 minx = dstrect->
w - centerx;
1039 maxx = dstrect->
w - centerx;
1043 miny = dstrect->
h - centery;
1047 maxy = dstrect->
h - centery;
1050 minu = (
GLfloat) srcrect->
x / texture->
w;
1051 minu *= texturedata->texw;
1052 maxu = (
GLfloat) (srcrect->
x + srcrect->
w) / texture->
w;
1053 maxu *= texturedata->texw;
1054 minv = (
GLfloat) srcrect->
y / texture->
h;
1055 minv *= texturedata->texh;
1056 maxv = (
GLfloat) (srcrect->
y + srcrect->
h) / texture->
h;
1057 maxv *= texturedata->texh;
1068 texCoords[0] = minu;
1069 texCoords[1] = minv;
1070 texCoords[2] = maxu;
1071 texCoords[3] = minv;
1072 texCoords[4] = minu;
1073 texCoords[5] = maxv;
1074 texCoords[6] = maxu;
1075 texCoords[7] = maxv;
1076 data->glVertexPointer(2,
GL_FLOAT, 0, vertices);
1077 data->glTexCoordPointer(2,
GL_FLOAT, 0, texCoords);
1079 data->glPopMatrix();
1089 GLES_RenderData *data = (GLES_RenderData *) renderer->
driverdata;
1097 GLES_ActivateRenderer(renderer);
1109 data->glReadPixels(rect->
x, renderer->
target ? rect->
y : (h-rect->
y)-rect->
h,
1115 src = (
Uint8*)temp_pixels + (rect->
h-1)*temp_pitch;
1130 temp_format, temp_pixels, temp_pitch,
1131 pixel_format, pixels, pitch);
1140 GLES_ActivateRenderer(renderer);
1148 GLES_RenderData *renderdata = (GLES_RenderData *) renderer->
driverdata;
1150 GLES_TextureData *data = (GLES_TextureData *) texture->
driverdata;
1152 GLES_ActivateRenderer(renderer);
1157 if (data->texture) {
1158 renderdata->glDeleteTextures(1, &data->texture);
1168 GLES_RenderData *data = (GLES_RenderData *) renderer->
driverdata;
1171 if (data->context) {
1172 while (data->framebuffers) {
1173 GLES_FBOList *nextnode = data->framebuffers->next;
1174 data->glDeleteFramebuffersOES(1, &data->framebuffers->FBO);
1176 data->framebuffers = nextnode;
1187 GLES_RenderData *data = (GLES_RenderData *) renderer->
driverdata;
1188 GLES_TextureData *texturedata = (GLES_TextureData *) texture->
driverdata;
1189 GLES_ActivateRenderer(renderer);
1192 data->glBindTexture(texturedata->type, texturedata->texture);
1195 *texw = (float)texturedata->texw;
1198 *texh = (float)texturedata->texh;
1206 GLES_RenderData *data = (GLES_RenderData *) renderer->
driverdata;
1207 GLES_TextureData *texturedata = (GLES_TextureData *) texture->
driverdata;
1208 GLES_ActivateRenderer(renderer);
1209 data->glDisable(texturedata->type);
int(* RenderDrawLines)(SDL_Renderer *renderer, const SDL_FPoint *points, int count)
#define GL_STACK_UNDERFLOW
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
#define SDL_GL_ExtensionSupported
int(* RenderDrawPoints)(SDL_Renderer *renderer, const SDL_FPoint *points, int count)
int(* LockTexture)(SDL_Renderer *renderer, SDL_Texture *texture, const SDL_Rect *rect, void **pixels, int *pitch)
#define GL_INVALID_OPERATION
GLdouble GLdouble GLdouble r
GLint GLint GLsizei width
#define SDL_GL_CreateContext
int(* RenderReadPixels)(SDL_Renderer *renderer, const SDL_Rect *rect, Uint32 format, void *pixels, int pitch)
const GLuint * framebuffers
GLint GLint GLint GLint GLint x
GLuint GLuint GLsizei count
#define SDL_HINT_RENDER_SCALE_QUALITY
A variable controlling the scaling quality.
static SDL_Window * window
GLenum GLenum GLuint texture
GLint GLenum GLsizei GLsizei GLsizei GLint GLsizei const GLvoid * data
#define SDL_GetWindowFlags
#define SDL_BYTESPERPIXEL(X)
#define GL_TEXTURE_MAG_FILTER
int(* RenderFillRects)(SDL_Renderer *renderer, const SDL_FRect *rects, int count)
GLint GLint GLsizei GLsizei GLsizei GLint GLenum GLenum const GLvoid * pixels
#define GL_TRIANGLE_STRIP
uint32_t Uint32
An unsigned 32-bit integer type.
GLint GLint GLsizei GLsizei height
#define GL_ONE_MINUS_SRC_ALPHA
int(* RenderClear)(SDL_Renderer *renderer)
void(* DestroyRenderer)(SDL_Renderer *renderer)
GLfixed GLfixed GLint GLint GLfixed points
int(* GetOutputSize)(SDL_Renderer *renderer, int *w, int *h)
#define GL_PACK_ALIGNMENT
#define GL_MAX_TEXTURE_SIZE
static SDL_BlendMode blendMode
int(* UpdateTexture)(SDL_Renderer *renderer, SDL_Texture *texture, const SDL_Rect *rect, const void *pixels, int pitch)
#define SDL_GL_SetAttribute
#define SDL_GL_GetDrawableSize
GLuint GLuint GLsizei GLenum type
void * SDL_calloc(size_t nmemb, size_t size)
void * SDL_GLContext
An opaque handle to an OpenGL context.
#define SDL_GL_GetSwapInterval
GLenum GLenum GLenum input
GLint GLint GLint GLint GLint GLint y
int SDL_RecreateWindow(SDL_Window *window, Uint32 flags)
GLsizei const GLfloat * value
#define GL_STACK_OVERFLOW
static int GetScaleQuality(void)
static SDL_Renderer * renderer
uint8_t Uint8
An unsigned 8-bit integer type.
#define SDL_stack_alloc(type, count)
#define SDL_GL_SetSwapInterval
#define GL_TEXTURE_WRAP_T
int(* GL_BindTexture)(SDL_Renderer *renderer, SDL_Texture *texture, float *texw, float *texh)
void(* UnlockTexture)(SDL_Renderer *renderer, SDL_Texture *texture)
int(* SetRenderTarget)(SDL_Renderer *renderer, SDL_Texture *texture)
int(* UpdateViewport)(SDL_Renderer *renderer)
#define GL_COLOR_BUFFER_BIT
int(* GL_UnbindTexture)(SDL_Renderer *renderer, SDL_Texture *texture)
SDL_RendererFlip
Flip constants for SDL_RenderCopyEx.
GLenum GLenum GLsizei const GLuint GLboolean enabled
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
int(* RenderCopy)(SDL_Renderer *renderer, SDL_Texture *texture, const SDL_Rect *srcrect, const SDL_FRect *dstrect)
Window state change event data (event.window.*)
#define SDL_OutOfMemory()
int(* RenderCopyEx)(SDL_Renderer *renderer, SDL_Texture *texture, const SDL_Rect *srcquad, const SDL_FRect *dstrect, const double angle, const SDL_FPoint *center, const SDL_RendererFlip flip)
#define SDL_GL_MakeCurrent
#define SDL_GetRendererOutputSize
The type used to identify a window.
SDL_Rect rects[MAX_RECTS]
void(* WindowEvent)(SDL_Renderer *renderer, const SDL_WindowEvent *event)
#define GL_TEXTURE_COORD_ARRAY
#define SDL_GL_GetAttribute
GLubyte GLubyte GLubyte GLubyte w
#define SDL_ConvertPixels
void(* DestroyTexture)(SDL_Renderer *renderer, SDL_Texture *texture)
int(* CreateTexture)(SDL_Renderer *renderer, SDL_Texture *texture)
void(* RenderPresent)(SDL_Renderer *renderer)
#define SDL_GL_DeleteContext
#define SDL_stack_free(data)
#define GL_TEXTURE_WRAP_S
GLuint GLsizei GLsizei * length
#define GL_TEXTURE_MIN_FILTER
GLboolean GLboolean GLboolean GLboolean a
#define GL_UNPACK_ALIGNMENT
int(* UpdateClipRect)(SDL_Renderer *renderer)
GLboolean GLboolean GLboolean b
#define SDL_GL_SwapWindow
GLfloat GLfloat GLfloat GLfloat h
SDL_bool clipping_enabled
A rectangle, with the origin at the upper left.