diff options
author | 2016-11-16 16:26:13 +0100 | |
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committer | 2016-11-16 16:28:01 +0100 | |
commit | 47a05778bff9388fc6c479461dd3804c79d7b539 (patch) | |
tree | bb3d4dc8df676b8aa478339b3fd0cd305dc4ac4d /3rdparty/SDL2/src/render/opengl/SDL_render_gl.c | |
parent | e61b392edfbfe5b9d70908c087632da915a3abd8 (diff) |
Updated SDL2 to 2.0.5 (nw)
Diffstat (limited to '3rdparty/SDL2/src/render/opengl/SDL_render_gl.c')
-rw-r--r-- | 3rdparty/SDL2/src/render/opengl/SDL_render_gl.c | 74 |
1 files changed, 45 insertions, 29 deletions
diff --git a/3rdparty/SDL2/src/render/opengl/SDL_render_gl.c b/3rdparty/SDL2/src/render/opengl/SDL_render_gl.c index 6a4fa3ecf29..1ca2cb5c4c0 100644 --- a/3rdparty/SDL2/src/render/opengl/SDL_render_gl.c +++ b/3rdparty/SDL2/src/render/opengl/SDL_render_gl.c @@ -390,7 +390,6 @@ GL_CreateRenderer(SDL_Window * window, Uint32 flags) { SDL_Renderer *renderer; GL_RenderData *data; - const char *hint; GLint value; Uint32 window_flags; int profile_mask = 0, major = 0, minor = 0; @@ -450,7 +449,7 @@ GL_CreateRenderer(SDL_Window * window, Uint32 flags) renderer->GL_BindTexture = GL_BindTexture; renderer->GL_UnbindTexture = GL_UnbindTexture; renderer->info = GL_RenderDriver.info; - renderer->info.flags = (SDL_RENDERER_ACCELERATED | SDL_RENDERER_TARGETTEXTURE); + renderer->info.flags = SDL_RENDERER_ACCELERATED; renderer->driverdata = data; renderer->window = window; @@ -528,8 +527,7 @@ GL_CreateRenderer(SDL_Window * window, Uint32 flags) } /* Check for shader support */ - hint = SDL_GetHint(SDL_HINT_RENDER_OPENGL_SHADERS); - if (!hint || *hint != '0') { + if (SDL_GetHintBoolean(SDL_HINT_RENDER_OPENGL_SHADERS, SDL_TRUE)) { data->shaders = GL_CreateShaderContext(); } SDL_LogInfo(SDL_LOG_CATEGORY_RENDER, "OpenGL shaders: %s", @@ -594,7 +592,6 @@ static int GL_GetOutputSize(SDL_Renderer * renderer, int *w, int *h) { SDL_GL_GetDrawableSize(renderer->window, w, h); - return 0; } @@ -664,6 +661,11 @@ GL_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture) GL_ActivateRenderer(renderer); + if (texture->access == SDL_TEXTUREACCESS_TARGET && + !renderdata->GL_EXT_framebuffer_object_supported) { + return SDL_SetError("Render targets not supported by OpenGL"); + } + if (!convert_format(renderdata, texture->format, &internalFormat, &format, &type)) { return SDL_SetError("Texture format %s not supported by OpenGL", @@ -980,6 +982,10 @@ GL_SetRenderTarget(SDL_Renderer * renderer, SDL_Texture * texture) GL_ActivateRenderer(renderer); + if (!data->GL_EXT_framebuffer_object_supported) { + return SDL_SetError("Render targets not supported by OpenGL"); + } + if (texture == NULL) { data->glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0); return 0; @@ -1013,7 +1019,7 @@ GL_UpdateViewport(SDL_Renderer * renderer) } else { int w, h; - SDL_GetRendererOutputSize(renderer, &w, &h); + SDL_GL_GetDrawableSize(renderer->window, &w, &h); data->glViewport(renderer->viewport.x, (h - renderer->viewport.y - renderer->viewport.h), renderer->viewport.w, renderer->viewport.h); } @@ -1051,7 +1057,7 @@ GL_UpdateClipRect(SDL_Renderer * renderer) } else { int w, h; - SDL_GetRendererOutputSize(renderer, &w, &h); + SDL_GL_GetDrawableSize(renderer->window, &w, &h); data->glScissor(renderer->viewport.x + rect->x, h - renderer->viewport.y - rect->y - rect->h, rect->w, rect->h); } } else { @@ -1089,21 +1095,17 @@ GL_SetBlendMode(GL_RenderData * data, int blendMode) if (blendMode != data->current.blendMode) { switch (blendMode) { case SDL_BLENDMODE_NONE: - data->glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); data->glDisable(GL_BLEND); break; case SDL_BLENDMODE_BLEND: - data->glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); data->glEnable(GL_BLEND); data->glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE_MINUS_SRC_ALPHA); break; case SDL_BLENDMODE_ADD: - data->glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); data->glEnable(GL_BLEND); data->glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE, GL_ZERO, GL_ONE); break; case SDL_BLENDMODE_MOD: - data->glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); data->glEnable(GL_BLEND); data->glBlendFuncSeparate(GL_ZERO, GL_SRC_COLOR, GL_ZERO, GL_ONE); break; @@ -1141,8 +1143,16 @@ GL_RenderClear(SDL_Renderer * renderer) (GLfloat) renderer->b * inv255f, (GLfloat) renderer->a * inv255f); + if (renderer->clipping_enabled) { + data->glDisable(GL_SCISSOR_TEST); + } + data->glClear(GL_COLOR_BUFFER_BIT); + if (renderer->clipping_enabled) { + data->glEnable(GL_SCISSOR_TEST); + } + return 0; } @@ -1409,7 +1419,7 @@ GL_RenderReadPixels(SDL_Renderer * renderer, const SDL_Rect * rect, Uint32 pixel_format, void * pixels, int pitch) { GL_RenderData *data = (GL_RenderData *) renderer->driverdata; - Uint32 temp_format = SDL_PIXELFORMAT_ARGB8888; + Uint32 temp_format = renderer->target ? renderer->target->format : SDL_PIXELFORMAT_ARGB8888; void *temp_pixels; int temp_pitch; GLint internalFormat; @@ -1426,7 +1436,11 @@ GL_RenderReadPixels(SDL_Renderer * renderer, const SDL_Rect * rect, return SDL_OutOfMemory(); } - convert_format(data, temp_format, &internalFormat, &format, &type); + if (!convert_format(data, temp_format, &internalFormat, &format, &type)) { + SDL_free(temp_pixels); + return SDL_SetError("Texture format %s not supported by OpenGL", + SDL_GetPixelFormatName(temp_format)); + } SDL_GetRendererOutputSize(renderer, &w, &h); @@ -1434,28 +1448,30 @@ GL_RenderReadPixels(SDL_Renderer * renderer, const SDL_Rect * rect, data->glPixelStorei(GL_PACK_ROW_LENGTH, (temp_pitch / SDL_BYTESPERPIXEL(temp_format))); - data->glReadPixels(rect->x, (h-rect->y)-rect->h, rect->w, rect->h, - format, type, temp_pixels); + data->glReadPixels(rect->x, renderer->target ? rect->y : (h-rect->y)-rect->h, + rect->w, rect->h, format, type, temp_pixels); if (GL_CheckError("glReadPixels()", renderer) < 0) { SDL_free(temp_pixels); return -1; } - /* Flip the rows to be top-down */ - length = rect->w * SDL_BYTESPERPIXEL(temp_format); - src = (Uint8*)temp_pixels + (rect->h-1)*temp_pitch; - dst = (Uint8*)temp_pixels; - tmp = SDL_stack_alloc(Uint8, length); - rows = rect->h / 2; - while (rows--) { - SDL_memcpy(tmp, dst, length); - SDL_memcpy(dst, src, length); - SDL_memcpy(src, tmp, length); - dst += temp_pitch; - src -= temp_pitch; - } - SDL_stack_free(tmp); + /* Flip the rows to be top-down if necessary */ + if (!renderer->target) { + length = rect->w * SDL_BYTESPERPIXEL(temp_format); + src = (Uint8*)temp_pixels + (rect->h-1)*temp_pitch; + dst = (Uint8*)temp_pixels; + tmp = SDL_stack_alloc(Uint8, length); + rows = rect->h / 2; + while (rows--) { + SDL_memcpy(tmp, dst, length); + SDL_memcpy(dst, src, length); + SDL_memcpy(src, tmp, length); + dst += temp_pitch; + src -= temp_pitch; + } + SDL_stack_free(tmp); + } status = SDL_ConvertPixels(rect->w, rect->h, temp_format, temp_pixels, temp_pitch, |