omar/panopainter
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Route RTT lifecycle through GL backend

Browse Source
This commit is contained in:
omigamedev
2026-06-04 21:47:19 +02:00
parent fc20851462
commit ce787ce186
7 changed files with 569 additions and 77 deletions
Download Patch File Download Diff File Expand all files Collapse all files

99
src/renderer_gl/opengl_capabilities.cpp
View File

@@ -748,6 +748,33 @@ pp::foundation::Status update_opengl_texture_2d(
return pp::foundation::Status::success();
}
pp::foundation::Status set_opengl_texture_2d_parameters(
std::uint32_t texture_id,
std::span<const OpenGlTextureParameter> parameters,
OpenGlTexture2DParameterDispatch dispatch) noexcept
{
if (dispatch.bind_texture == nullptr || dispatch.tex_parameter_f == nullptr) {
return pp::foundation::Status::invalid_argument("OpenGL texture parameter dispatch callbacks must not be null");
}
if (texture_id == 0U || parameters.empty()) {
return pp::foundation::Status::invalid_argument("OpenGL texture parameter request is invalid");
}
for (const auto parameter : parameters) {
if (parameter.name == 0U) {
return pp::foundation::Status::invalid_argument("OpenGL texture parameter name is invalid");
}
}
dispatch.bind_texture(texture_2d_target(), texture_id);
for (const auto parameter : parameters) {
dispatch.tex_parameter_f(texture_2d_target(), parameter.name, static_cast<float>(parameter.value));
}
dispatch.bind_texture(texture_2d_target(), default_framebuffer_id());
return pp::foundation::Status::success();
}
pp::foundation::Status copy_opengl_framebuffer_to_texture_2d(
OpenGlTexture2DFramebufferCopy copy,
OpenGlTexture2DFramebufferCopyDispatch dispatch) noexcept
@@ -969,6 +996,78 @@ pp::foundation::Status restore_opengl_framebuffer_binding(
return pp::foundation::Status::success();
}
pp::foundation::Result<OpenGlRenderTargetFramebufferAllocationResult> allocate_opengl_render_target_framebuffer(
std::uint32_t texture_id,
std::uint32_t depth_renderbuffer_id,
OpenGlRenderTargetFramebufferAllocationDispatch dispatch) noexcept
{
if (dispatch.gen_framebuffers == nullptr
|| dispatch.get_integer == nullptr
|| dispatch.bind_framebuffer == nullptr
|| dispatch.framebuffer_texture_2d == nullptr
|| dispatch.framebuffer_renderbuffer == nullptr
|| dispatch.check_framebuffer_status == nullptr) {
return pp::foundation::Result<OpenGlRenderTargetFramebufferAllocationResult>::failure(
pp::foundation::Status::invalid_argument(
"OpenGL render-target framebuffer allocation dispatch callbacks must not be null"));
}
if (texture_id == 0U) {
return pp::foundation::Result<OpenGlRenderTargetFramebufferAllocationResult>::failure(
pp::foundation::Status::invalid_argument("OpenGL render-target framebuffer texture id is invalid"));
}
std::int32_t old_framebuffer = 0;
dispatch.get_integer(draw_framebuffer_binding_query(), &old_framebuffer);
std::uint32_t framebuffer_id = 0U;
dispatch.gen_framebuffers(1U, &framebuffer_id);
if (framebuffer_id == 0U) {
dispatch.bind_framebuffer(framebuffer_target(), static_cast<std::uint32_t>(old_framebuffer));
return pp::foundation::Result<OpenGlRenderTargetFramebufferAllocationResult>::failure(
pp::foundation::Status::out_of_range("OpenGL render-target framebuffer allocation returned id 0"));
}
dispatch.bind_framebuffer(framebuffer_target(), framebuffer_id);
dispatch.framebuffer_texture_2d(
framebuffer_target(),
framebuffer_color_attachment(),
texture_2d_target(),
texture_id,
0);
if (depth_renderbuffer_id != 0U) {
dispatch.framebuffer_renderbuffer(
framebuffer_target(),
framebuffer_depth_attachment(),
renderbuffer_target(),
depth_renderbuffer_id);
}
const auto framebuffer_status = dispatch.check_framebuffer_status(framebuffer_target());
dispatch.bind_framebuffer(framebuffer_target(), static_cast<std::uint32_t>(old_framebuffer));
return pp::foundation::Result<OpenGlRenderTargetFramebufferAllocationResult>::success(
OpenGlRenderTargetFramebufferAllocationResult {
.framebuffer_id = framebuffer_id,
.framebuffer_status = framebuffer_status,
});
}
pp::foundation::Status delete_opengl_framebuffer(
std::uint32_t framebuffer_id,
OpenGlFramebufferDeleteDispatch dispatch) noexcept
{
if (dispatch.delete_framebuffers == nullptr) {
return pp::foundation::Status::invalid_argument("OpenGL framebuffer delete dispatch callback must not be null");
}
if (framebuffer_id == 0U) {
return pp::foundation::Status::success();
}
dispatch.delete_framebuffers(1U, &framebuffer_id);
return pp::foundation::Status::success();
}
pp::foundation::Result<std::uint32_t> allocate_opengl_pixel_buffer(
OpenGlPixelBufferAllocationDispatch dispatch) noexcept
{

35
src/renderer_gl/opengl_capabilities.h
View File

@@ -172,6 +172,11 @@ struct OpenGlTexture2DReadbackResult {
bool pixels_read = false;
};
struct OpenGlRenderTargetFramebufferAllocationResult {
std::uint32_t framebuffer_id = 0;
std::uint32_t framebuffer_status = 0;
};
struct OpenGlShaderCompileInfo {
std::uint32_t shader_id = 0;
std::int32_t compile_status = 0;
@@ -442,6 +447,7 @@ using OpenGlTexSubImage2DFn = void (*)(
std::uint32_t pixel_format,
std::uint32_t component_type,
const void* data) noexcept;
using OpenGlTexParameterfFn = void (*)(std::uint32_t target, std::uint32_t parameter, float value) noexcept;
using OpenGlCopyTexSubImage2DFn = void (*)(
std::uint32_t target,
std::int32_t level,
@@ -607,6 +613,11 @@ struct OpenGlTexture2DUpdateDispatch {
OpenGlTexSubImage2DFn tex_sub_image_2d = nullptr;
};
struct OpenGlTexture2DParameterDispatch {
OpenGlBindTextureFn bind_texture = nullptr;
OpenGlTexParameterfFn tex_parameter_f = nullptr;
};
struct OpenGlTexture2DFramebufferCopyDispatch {
OpenGlCopyTexSubImage2DFn copy_tex_sub_image_2d = nullptr;
};
@@ -648,6 +659,19 @@ struct OpenGlFramebufferRestoreDispatch {
OpenGlBindFramebufferFn bind_framebuffer = nullptr;
};
struct OpenGlRenderTargetFramebufferAllocationDispatch {
OpenGlGenObjectsFn gen_framebuffers = nullptr;
OpenGlGetIntegerFn get_integer = nullptr;
OpenGlBindFramebufferFn bind_framebuffer = nullptr;
OpenGlFramebufferTexture2DFn framebuffer_texture_2d = nullptr;
OpenGlFramebufferRenderbufferFn framebuffer_renderbuffer = nullptr;
OpenGlCheckFramebufferStatusFn check_framebuffer_status = nullptr;
};
struct OpenGlFramebufferDeleteDispatch {
OpenGlDeleteObjectsFn delete_framebuffers = nullptr;
};
struct OpenGlPixelBufferAllocationDispatch {
OpenGlGenObjectsFn gen_buffers = nullptr;
};
@@ -874,6 +898,10 @@ struct OpenGlMeshDeleteDispatch {
[[nodiscard]] pp::foundation::Status update_opengl_texture_2d(
OpenGlTexture2DUpdate update,
OpenGlTexture2DUpdateDispatch dispatch) noexcept;
[[nodiscard]] pp::foundation::Status set_opengl_texture_2d_parameters(
std::uint32_t texture_id,
std::span<const OpenGlTextureParameter> parameters,
OpenGlTexture2DParameterDispatch dispatch) noexcept;
[[nodiscard]] pp::foundation::Status copy_opengl_framebuffer_to_texture_2d(
OpenGlTexture2DFramebufferCopy copy,
OpenGlTexture2DFramebufferCopyDispatch dispatch) noexcept;
@@ -895,6 +923,13 @@ struct OpenGlMeshDeleteDispatch {
[[nodiscard]] pp::foundation::Status restore_opengl_framebuffer_binding(
OpenGlFramebufferBindingState binding,
OpenGlFramebufferRestoreDispatch dispatch) noexcept;
[[nodiscard]] pp::foundation::Result<OpenGlRenderTargetFramebufferAllocationResult> allocate_opengl_render_target_framebuffer(
std::uint32_t texture_id,
std::uint32_t depth_renderbuffer_id,
OpenGlRenderTargetFramebufferAllocationDispatch dispatch) noexcept;
[[nodiscard]] pp::foundation::Status delete_opengl_framebuffer(
std::uint32_t framebuffer_id,
OpenGlFramebufferDeleteDispatch dispatch) noexcept;
[[nodiscard]] pp::foundation::Result<std::uint32_t> allocate_opengl_pixel_buffer(
OpenGlPixelBufferAllocationDispatch dispatch) noexcept;
[[nodiscard]] pp::foundation::Result<std::uint32_t> readback_opengl_framebuffer_to_pixel_buffer(