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)
53static const float inv255f = 1.0f / 255.0f;
55typedef struct GLES_FBOList GLES_FBOList;
86#define SDL_PROC(ret,func,params) ret (APIENTRY *func) params;
87#define SDL_PROC_OES SDL_PROC
91 SDL_bool GL_OES_framebuffer_object_supported;
95 SDL_bool GL_OES_blend_func_separate_supported;
96 SDL_bool GL_OES_blend_equation_separate_supported;
97 SDL_bool GL_OES_blend_subtract_supported;
99 GLES_DrawStateCache drawstate;
122 error =
"GL_NO_ERROR";
125 error =
"GL_INVALID_ENUM";
128 error =
"GL_INVALID_VALUE";
131 error =
"GL_INVALID_OPERATION";
134 error =
"GL_STACK_OVERFLOW";
137 error =
"GL_STACK_UNDERFLOW";
140 error =
"GL_OUT_OF_MEMORY";
149static int GLES_LoadFunctions(GLES_RenderData *
data)
151#if SDL_VIDEO_DRIVER_UIKIT
152#define __SDL_NOGETPROCADDR__
153#elif SDL_VIDEO_DRIVER_ANDROID
154#define __SDL_NOGETPROCADDR__
155#elif SDL_VIDEO_DRIVER_PANDORA
156#define __SDL_NOGETPROCADDR__
159#ifdef __SDL_NOGETPROCADDR__
160#define SDL_PROC(ret,func,params) data->func=func;
161#define SDL_PROC_OES(ret,func,params) data->func=func;
163#define SDL_PROC(ret,func,params) \
165 data->func = SDL_GL_GetProcAddress(#func); \
166 if ( ! data->func ) { \
167 return SDL_SetError("Couldn't load GLES function %s: %s", #func, SDL_GetError()); \
170#define SDL_PROC_OES(ret,func,params) \
172 data->func = SDL_GL_GetProcAddress(#func); \
265 return GL_FUNC_ADD_OES;
267 return GL_FUNC_SUBTRACT_OES;
269 return GL_FUNC_REVERSE_SUBTRACT_OES;
294 if ((srcColorFactor != srcAlphaFactor || dstColorFactor != dstAlphaFactor) && !
data->GL_OES_blend_func_separate_supported) {
297 if (colorOperation != alphaOperation && !
data->GL_OES_blend_equation_separate_supported) {
321 GLES_TextureData *
data;
324 int texture_w, texture_h;
356 if (!renderdata->GL_OES_framebuffer_object_supported) {
358 return SDL_SetError(
"GL_OES_framebuffer_object not supported");
366 renderdata->glGetError();
368 renderdata->glGenTextures(1, &
data->texture);
369 result = renderdata->glGetError();
372 return GLES_SetError(
"glGenTextures()",
result);
377 texture_w = power_of_2(
texture->w);
378 texture_h = power_of_2(
texture->h);
385 renderdata->glBindTexture(
data->type,
data->texture);
394 renderdata->drawstate.texture =
texture;
395 renderdata->drawstate.texturing =
SDL_FALSE;
397 result = renderdata->glGetError();
400 return GLES_SetError(
"glTexImage2D()",
result);
412 GLES_TextureData *
data = (GLES_TextureData *)
texture->driverdata;
428 if (pitch != srcPitch) {
443 renderdata->glGetError();
444 renderdata->glEnable(
data->type);
445 renderdata->glBindTexture(
data->type,
data->texture);
447 renderdata->glTexSubImage2D(
data->type,
456 renderdata->glDisable(
data->type);
459 renderdata->drawstate.texture =
texture;
460 renderdata->drawstate.texturing =
SDL_FALSE;
472 GLES_TextureData *
data = (GLES_TextureData *)
texture->driverdata;
477 *pitch =
data->pitch;
484 GLES_TextureData *
data = (GLES_TextureData *)
texture->driverdata;
499 GLES_TextureData *texturedata =
NULL;
502 if (!
data->GL_OES_framebuffer_object_supported) {
503 return SDL_SetError(
"Can't enable render target support in this renderer");
509 data->glBindFramebufferOES(GL_FRAMEBUFFER_OES,
data->window_framebuffer);
513 texturedata = (GLES_TextureData *)
texture->driverdata;
514 data->glBindFramebufferOES(GL_FRAMEBUFFER_OES, texturedata->fbo->FBO);
516 data->glFramebufferTexture2DOES(GL_FRAMEBUFFER_OES, GL_COLOR_ATTACHMENT0_OES, texturedata->type, texturedata->texture, 0);
518 status =
data->glCheckFramebufferStatusOES(GL_FRAMEBUFFER_OES);
519 if (status != GL_FRAMEBUFFER_COMPLETE_OES) {
520 return SDL_SetError(
"glFramebufferTexture2DOES() failed");
586 GLES_TextureData *texturedata = (GLES_TextureData *)
texture->driverdata;
587 GLfloat minx, miny, maxx, maxy;
588 GLfloat minu, maxu, minv, maxv;
599 maxx = dstrect->
x + dstrect->
w;
600 maxy = dstrect->
y + dstrect->
h;
603 minu *= texturedata->texw;
605 maxu *= texturedata->texw;
607 minv *= texturedata->texh;
609 maxv *= texturedata->texh;
637 GLES_TextureData *texturedata = (GLES_TextureData *)
texture->driverdata;
638 GLfloat minx, miny, maxx, maxy;
640 GLfloat minu, maxu, minv, maxv;
651 minx = dstrect->
w - centerx;
656 maxx = dstrect->
w - centerx;
660 miny = dstrect->
h - centery;
665 maxy = dstrect->
h - centery;
669 minu *= texturedata->texw;
671 maxu *= texturedata->texw;
673 minv *= texturedata->texh;
675 maxv *= texturedata->texh;
697 *(verts++) = (
GLfloat) dstrect->
x + centerx;
698 *(verts++) = (
GLfloat) dstrect->
y + centery;
719 data->glColor4f(fr, fg, fb, fa);
723 if (
data->drawstate.viewport_dirty) {
727 data->glLoadIdentity();
741 if (
data->drawstate.cliprect_enabled_dirty) {
742 if (
data->drawstate.cliprect_enabled) {
750 if (
data->drawstate.cliprect_enabled &&
data->drawstate.cliprect_dirty) {
760 if (blend !=
data->drawstate.blend) {
765 if (
data->GL_OES_blend_func_separate_supported) {
774 if (
data->GL_OES_blend_equation_separate_supported) {
777 }
else if (
data->GL_OES_blend_subtract_supported) {
781 data->drawstate.blend = blend;
804 GLES_TextureData *texturedata = (GLES_TextureData *)
texture->driverdata;
816 if (GLES_ActivateRenderer(
renderer) < 0) {
860 if (
color !=
data->drawstate.clear_color) {
865 data->glClearColor(fr, fg, fb, fa);
869 if (
data->drawstate.cliprect_enabled) {
893 if (
count > 2 && (verts[0] == verts[(
count-1)*2]) && (verts[1] == verts[(
count*2)-1])) {
918 SetCopyState(
data, cmd);
927 const GLfloat translatex = verts[16];
928 const GLfloat translatey = verts[17];
930 SetCopyState(
data, cmd);
935 data->glPushMatrix();
936 data->glTranslatef(translatex, translatey, 0.0f);
999 temp_format, temp_pixels, temp_pitch,
1000 pixel_format,
pixels, pitch);
1019 GLES_TextureData *
data = (GLES_TextureData *)
texture->driverdata;
1023 if (renderdata->drawstate.texture ==
texture) {
1024 renderdata->drawstate.texture =
NULL;
1026 if (renderdata->drawstate.target ==
texture) {
1027 renderdata->drawstate.target =
NULL;
1033 if (
data->texture) {
1034 renderdata->glDeleteTextures(1, &
data->texture);
1047 if (
data->context) {
1048 while (
data->framebuffers) {
1049 GLES_FBOList *nextnode =
data->framebuffers->next;
1050 data->glDeleteFramebuffersOES(1, &
data->framebuffers->FBO);
1052 data->framebuffers = nextnode;
1064 GLES_TextureData *texturedata = (GLES_TextureData *)
texture->driverdata;
1068 data->glBindTexture(texturedata->type, texturedata->texture);
1074 *texw = (float)texturedata->texw;
1077 *texh = (float)texturedata->texh;
1086 GLES_TextureData *texturedata = (GLES_TextureData *)
texture->driverdata;
1088 data->glDisable(texturedata->type);
1100 GLES_RenderData *
data;
1103 int profile_mask = 0, major = 0, minor = 0;
1165 if (!
data->context) {
1174 if (GLES_LoadFunctions(
data) < 0) {
1201 data->glGetIntegerv(GL_FRAMEBUFFER_BINDING_OES, &
value);
1210 data->GL_OES_blend_equation_separate_supported =
SDL_TRUE;
1221 data->glLoadIdentity();
1226 data->glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
1229 data->drawstate.color = 0xFFFFFFFF;
1230 data->drawstate.clear_color = 0xFFFFFFFF;
1235 if (changed_window) {
1246 GLES_CreateRenderer,
SDL_BlendOperation
The blend operation used when combining source and destination pixel components.
@ SDL_BLENDOPERATION_REV_SUBTRACT
@ SDL_BLENDOPERATION_SUBTRACT
SDL_BlendFactor
The normalized factor used to multiply pixel components.
@ SDL_BLENDFACTOR_ONE_MINUS_SRC_COLOR
@ SDL_BLENDFACTOR_SRC_COLOR
@ SDL_BLENDFACTOR_SRC_ALPHA
@ SDL_BLENDFACTOR_ONE_MINUS_DST_COLOR
@ SDL_BLENDFACTOR_ONE_MINUS_DST_ALPHA
@ SDL_BLENDFACTOR_ONE_MINUS_SRC_ALPHA
@ SDL_BLENDFACTOR_DST_ALPHA
@ SDL_BLENDFACTOR_DST_COLOR
SDL_BlendMode
The blend mode used in SDL_RenderCopy() and drawing operations.
#define SDL_GL_SwapWindow
#define SDL_GetWindowFlags
#define SDL_GL_GetAttribute
#define SDL_GL_SetSwapInterval
#define SDL_GL_MakeCurrent
#define SDL_GetRendererOutputSize
#define SDL_GL_SetAttribute
#define SDL_GL_GetSwapInterval
#define SDL_GL_DeleteContext
#define SDL_GL_CreateContext
#define SDL_GL_ExtensionSupported
#define SDL_GL_GetDrawableSize
#define SDL_ConvertPixels
#define SDL_GL_GetCurrentContext
#define SDL_OutOfMemory()
#define SDL_small_alloc(type, count, pisstack)
#define SDL_small_free(ptr, isstack)
#define GL_TEXTURE_COORD_ARRAY
#define GL_MAX_TEXTURE_SIZE
GLint GLint GLint GLint GLint GLint y
#define GL_TEXTURE_MIN_FILTER
#define GL_TEXTURE_WRAP_S
#define GL_ONE_MINUS_DST_ALPHA
#define GL_PACK_ALIGNMENT
#define GL_ONE_MINUS_DST_COLOR
#define GL_INVALID_OPERATION
GLuint GLuint GLsizei count
GLint GLint GLsizei GLsizei GLsizei GLint GLenum GLenum const GLvoid * pixels
#define GL_STACK_OVERFLOW
GLint GLenum GLsizei GLsizei GLsizei GLint GLsizei const GLvoid * data
#define GL_UNPACK_ALIGNMENT
#define GL_COLOR_BUFFER_BIT
GLint GLint GLsizei width
#define GL_ONE_MINUS_SRC_ALPHA
GLdouble GLdouble GLdouble r
GLint GLint GLint GLint GLint x
#define GL_TEXTURE_WRAP_T
GLint GLint GLsizei GLsizei height
#define GL_TEXTURE_MAG_FILTER
#define GL_TRIANGLE_STRIP
GLuint GLuint GLsizei GLenum type
#define GL_STACK_UNDERFLOW
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
#define GL_ONE_MINUS_SRC_COLOR
GLboolean GLboolean GLboolean b
GLfixed GLfixed GLint GLint GLfixed points
GLboolean GLboolean GLboolean GLboolean a
const GLuint * framebuffers
GLenum GLenum GLuint texture
GLuint GLsizei GLsizei * length
GLsizei const GLfloat * value
GLenum GLenum GLenum input
GLfloat GLfloat GLfloat GLfloat h
GLubyte GLubyte GLubyte GLubyte w
#define SDL_BYTESPERPIXEL(X)
@ SDL_PIXELFORMAT_ABGR8888
SDL_BlendFactor SDL_GetBlendModeDstColorFactor(SDL_BlendMode blendMode)
SDL_BlendFactor SDL_GetBlendModeSrcColorFactor(SDL_BlendMode blendMode)
SDL_BlendFactor SDL_GetBlendModeDstAlphaFactor(SDL_BlendMode blendMode)
SDL_BlendFactor SDL_GetBlendModeSrcAlphaFactor(SDL_BlendMode blendMode)
SDL_BlendOperation SDL_GetBlendModeAlphaOperation(SDL_BlendMode blendMode)
SDL_BlendOperation SDL_GetBlendModeColorOperation(SDL_BlendMode blendMode)
void * SDL_AllocateRenderVertices(SDL_Renderer *renderer, const size_t numbytes, const size_t alignment, size_t *offset)
@ SDL_RENDERER_ACCELERATED
@ SDL_RENDERER_PRESENTVSYNC
@ SDL_RENDERER_TARGETTEXTURE
SDL_RendererFlip
Flip constants for SDL_RenderCopyEx.
@ SDL_TEXTUREACCESS_STREAMING
@ SDL_TEXTUREACCESS_TARGET
static void SetDrawState(SDL_Surface *surface, SW_DrawStateCache *drawstate)
SDL_RenderDriver GLES_RenderDriver
@ SDL_RENDERCMD_SETCLIPRECT
@ SDL_RENDERCMD_DRAW_LINES
@ SDL_RENDERCMD_SETVIEWPORT
@ SDL_RENDERCMD_DRAW_POINTS
@ SDL_RENDERCMD_FILL_RECTS
@ SDL_RENDERCMD_SETDRAWCOLOR
int SDL_RecreateWindow(SDL_Window *window, Uint32 flags)
@ SDL_GL_CONTEXT_MAJOR_VERSION
@ SDL_GL_CONTEXT_MINOR_VERSION
@ SDL_GL_CONTEXT_PROFILE_MASK
void * SDL_GLContext
An opaque handle to an OpenGL context.
@ SDL_WINDOWEVENT_MINIMIZED
@ SDL_GL_CONTEXT_PROFILE_ES
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)
EGLSurface EGLNativeWindowType * window
EGLSurface EGLint * rects
The structure that defines a point (floating point)
A rectangle, with the origin at the upper left (floating point).
A rectangle, with the origin at the upper left (integer).
union SDL_RenderCommand::@30 data
struct SDL_RenderCommand * next
struct SDL_RenderCommand::@30::@33 draw
struct SDL_RenderCommand::@30::@31 viewport
SDL_RenderCommandType command
struct SDL_RenderCommand::@30::@32 cliprect
struct SDL_RenderCommand::@30::@34 color
int(* QueueCopy)(SDL_Renderer *renderer, SDL_RenderCommand *cmd, SDL_Texture *texture, const SDL_Rect *srcrect, const SDL_FRect *dstrect)
int(* LockTexture)(SDL_Renderer *renderer, SDL_Texture *texture, const SDL_Rect *rect, void **pixels, int *pitch)
int(* QueueDrawLines)(SDL_Renderer *renderer, SDL_RenderCommand *cmd, const SDL_FPoint *points, int count)
void(* UnlockTexture)(SDL_Renderer *renderer, SDL_Texture *texture)
int(* UpdateTexture)(SDL_Renderer *renderer, SDL_Texture *texture, const SDL_Rect *rect, const void *pixels, int pitch)
int(* SetRenderTarget)(SDL_Renderer *renderer, SDL_Texture *texture)
void(* DestroyRenderer)(SDL_Renderer *renderer)
void(* DestroyTexture)(SDL_Renderer *renderer, SDL_Texture *texture)
int(* GL_BindTexture)(SDL_Renderer *renderer, SDL_Texture *texture, float *texw, float *texh)
int(* GetOutputSize)(SDL_Renderer *renderer, int *w, int *h)
SDL_bool(* SupportsBlendMode)(SDL_Renderer *renderer, SDL_BlendMode blendMode)
void(* RenderPresent)(SDL_Renderer *renderer)
int(* RenderReadPixels)(SDL_Renderer *renderer, const SDL_Rect *rect, Uint32 format, void *pixels, int pitch)
int(* QueueDrawPoints)(SDL_Renderer *renderer, SDL_RenderCommand *cmd, const SDL_FPoint *points, int count)
int(* QueueFillRects)(SDL_Renderer *renderer, SDL_RenderCommand *cmd, const SDL_FRect *rects, int count)
void(* WindowEvent)(SDL_Renderer *renderer, const SDL_WindowEvent *event)
int(* RunCommandQueue)(SDL_Renderer *renderer, SDL_RenderCommand *cmd, void *vertices, size_t vertsize)
int(* QueueCopyEx)(SDL_Renderer *renderer, SDL_RenderCommand *cmd, SDL_Texture *texture, const SDL_Rect *srcquad, const SDL_FRect *dstrect, const double angle, const SDL_FPoint *center, const SDL_RendererFlip flip)
int(* CreateTexture)(SDL_Renderer *renderer, SDL_Texture *texture)
int(* QueueSetViewport)(SDL_Renderer *renderer, SDL_RenderCommand *cmd)
int(* GL_UnbindTexture)(SDL_Renderer *renderer, SDL_Texture *texture)
int(* QueueSetDrawColor)(SDL_Renderer *renderer, SDL_RenderCommand *cmd)
Window state change event data (event.window.*)
The type used to identify a window.
static SDL_Renderer * renderer
static SDL_BlendMode blendMode
static screen_context_t context