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Fixed bug 4542 - Image flipped vertically when rendering on texture 

Have to recompute  viewport because projection/glOrtho is different
wether rendering is on target texture or not
This commit is contained in:
Sylvain Becker 2019-03-12 07:59:53 +01:00
parent 28f54ee439
commit b28e956b8c
3 changed files with 7 additions and 1 deletions
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4
src/render/opengl/SDL_render_gl.c
View File

@ -773,6 +773,8 @@ GL_SetRenderTarget(SDL_Renderer * renderer, SDL_Texture * texture)
return SDL_SetError("Render targets not supported by OpenGL");
}
data->drawstate.viewport_dirty = SDL_TRUE;
if (texture == NULL) {
data->glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
return 0;
@ -1525,7 +1527,7 @@ GL_CreateRenderer(SDL_Window * window, Uint32 flags)
SDL_GL_GetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, &profile_mask);
SDL_GL_GetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, &major);
SDL_GL_GetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, &minor);
window_flags = SDL_GetWindowFlags(window);
if (!(window_flags & SDL_WINDOW_OPENGL) ||
profile_mask == SDL_GL_CONTEXT_PROFILE_ES || major != RENDERER_CONTEXT_MAJOR || minor != RENDERER_CONTEXT_MINOR) {

2
src/render/opengles/SDL_render_gles.c
View File

@ -503,6 +503,8 @@ GLES_SetRenderTarget(SDL_Renderer * renderer, SDL_Texture * texture)
return SDL_SetError("Can't enable render target support in this renderer");
}
data->drawstate.viewport_dirty = SDL_TRUE;
if (texture == NULL) {
data->glBindFramebufferOES(GL_FRAMEBUFFER_OES, data->window_framebuffer);
return 0;

2
src/render/opengles2/SDL_render_gles2.c
View File

@ -1748,6 +1748,8 @@ GLES2_SetRenderTarget(SDL_Renderer * renderer, SDL_Texture * texture)
GLES2_TextureData *texturedata = NULL;
GLenum status;
data->drawstate.viewport_dirty = SDL_TRUE;
if (texture == NULL) {
data->glBindFramebuffer(GL_FRAMEBUFFER, data->window_framebuffer);
} else {