duuqnd/cave-story-solaris
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Get OpenGL renderers working again

Browse source
This commit is contained in:
Clownacy 2020-09-17 17:39:02 +01:00
parent 2b848ad16e
commit 86d084f750
1 changed files with 20 additions and 10 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

30
src/Backends/Rendering/OpenGL3.cpp
View file

@ -923,17 +923,27 @@ void RenderBackend_DestroyGlyphAtlas(RenderBackend_GlyphAtlas *atlas)
free(atlas);
}
void RenderBackend_UploadGlyph(RenderBackend_GlyphAtlas *atlas, size_t x, size_t y, const unsigned char *pixels, size_t width, size_t height)
void RenderBackend_UploadGlyph(RenderBackend_GlyphAtlas *atlas, size_t x, size_t y, const unsigned char *pixels, size_t width, size_t height, size_t pitch)
{
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
glBindTexture(GL_TEXTURE_2D, atlas->texture_id);
#ifdef USE_OPENGLES2
glTexSubImage2D(GL_TEXTURE_2D, 0, x, y, width, height, GL_LUMINANCE, GL_UNSIGNED_BYTE, pixels);
#else
glTexSubImage2D(GL_TEXTURE_2D, 0, x, y, width, height, GL_RED, GL_UNSIGNED_BYTE, pixels);
#endif
glBindTexture(GL_TEXTURE_2D, last_source_texture);
glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
unsigned char *buffer = (unsigned char*)malloc(width * height);
if (buffer != NULL)
{
for (size_t y = 0; y < height; ++y)
memcpy (&buffer[y * width], &pixels[y * pitch], width);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
glBindTexture(GL_TEXTURE_2D, atlas->texture_id);
#ifdef USE_OPENGLES2
glTexSubImage2D(GL_TEXTURE_2D, 0, x, y, width, height, GL_LUMINANCE, GL_UNSIGNED_BYTE, buffer);
#else
glTexSubImage2D(GL_TEXTURE_2D, 0, x, y, width, height, GL_RED, GL_UNSIGNED_BYTE, buffer);
#endif
glBindTexture(GL_TEXTURE_2D, last_source_texture);
glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
free(buffer);
}
}
void RenderBackend_PrepareToDrawGlyphs(RenderBackend_GlyphAtlas *atlas, RenderBackend_Surface *destination_surface, unsigned char red, unsigned char green, unsigned char blue)