diff options
Diffstat (limited to 'src/ral/backends/opengl')
| -rw-r--r-- | src/ral/backends/opengl/backend_opengl.c | 11 | ||||
| -rw-r--r-- | src/ral/backends/opengl/opengl_helpers.h | 2 |
2 files changed, 12 insertions, 1 deletions
diff --git a/src/ral/backends/opengl/backend_opengl.c b/src/ral/backends/opengl/backend_opengl.c index f971568..6c1a301 100644 --- a/src/ral/backends/opengl/backend_opengl.c +++ b/src/ral/backends/opengl/backend_opengl.c @@ -416,6 +416,17 @@ void GPU_EncodeDrawIndexed(GPU_CmdEncoder* encoder, u64 index_count) { glDrawElements(GL_TRIANGLES, index_count, GL_UNSIGNED_INT, 0); } +PUB void GPU_WriteTextureRegion(GPU_CmdEncoder* encoder, TextureHandle dst, u32 x_offset, + u32 y_offset, u32 width, u32 height, const void* data) { + CASSERT_MSG(data, "const void* data must not be NULL"); + + GPU_Texture* tex = TEXTURE_GET(dst); + + glBindTexture(GL_TEXTURE_2D, tex->id); + glTexSubImage2D(GL_TEXTURE_2D, 0, x_offset, y_offset, width, height, GL_RGBA, GL_UNSIGNED_BYTE, + data); +} + bool GPU_Backend_BeginFrame() { glViewport(0, 0, context.swapchain.dimensions.x * 2, context.swapchain.dimensions.y * 2); glClearColor(0.8f, 0.8f, 0.8f, 1.0f); diff --git a/src/ral/backends/opengl/opengl_helpers.h b/src/ral/backends/opengl/opengl_helpers.h index f240050..0450c74 100644 --- a/src/ral/backends/opengl/opengl_helpers.h +++ b/src/ral/backends/opengl/opengl_helpers.h @@ -59,7 +59,7 @@ static u32 opengl_bindcreate_vao(GPU_Buffer* buf, VertexDescription desc) { u32 attr_count = desc.attributes_count; printf("N attributes %d\n", attr_count); u64 offset = 0; - size_t vertex_size = desc.use_full_vertex_size ? sizeof(Vertex) : desc.stride; + size_t vertex_size = desc.use_full_vertex_size ? sizeof(Vertex) : VertexDesc_CalcStride(&desc); for (u32 i = 0; i < desc.attributes_count; i++) { opengl_vertex_attr format = format_from_vertex_attr(desc.attributes[i]); glVertexAttribPointer(i, format.count, format.data_type, GL_FALSE, vertex_size, (void*)offset); |