isle-portable/miniwin/src/internal/d3drmrenderer_opengles2.h
2025-06-17 03:47:23 +02:00

89 lines
2.3 KiB
C++

#pragma once
#include "d3drmrenderer.h"
#include "d3drmtexture_impl.h"
#include "ddraw_impl.h"
#include <GLES2/gl2.h>
#include <SDL3/SDL.h>
#include <vector>
DEFINE_GUID(OpenGLES2_GUID, 0x682656F3, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04);
struct GLES2TextureCacheEntry {
IDirect3DRMTexture* texture;
Uint32 version;
GLuint glTextureId;
};
struct GLES2MeshCacheEntry {
const MeshGroup* meshGroup;
int version;
bool flat;
std::vector<uint16_t> indices;
GLuint vboPositions;
GLuint vboNormals;
GLuint vboTexcoords;
GLuint ibo;
};
class OpenGLES2Renderer : public Direct3DRMRenderer {
public:
static Direct3DRMRenderer* Create(DWORD width, DWORD height);
OpenGLES2Renderer(
DWORD width,
DWORD height,
SDL_GLContext context,
GLuint fbo,
GLuint colorTex,
GLuint vertexBuffer,
GLuint shaderProgram
);
~OpenGLES2Renderer() override;
void PushLights(const SceneLight* lightsArray, size_t count) override;
void SetProjection(const D3DRMMATRIX4D& projection, D3DVALUE front, D3DVALUE back) override;
void SetFrustumPlanes(const Plane* frustumPlanes) override;
Uint32 GetTextureId(IDirect3DRMTexture* texture) override;
Uint32 GetMeshId(IDirect3DRMMesh* mesh, const MeshGroup* meshGroup) override;
DWORD GetWidth() override;
DWORD GetHeight() override;
void GetDesc(D3DDEVICEDESC* halDesc, D3DDEVICEDESC* helDesc) override;
const char* GetName() override;
HRESULT BeginFrame() override;
void EnableTransparency() override;
void SubmitDraw(
DWORD meshId,
const D3DRMMATRIX4D& modelViewMatrix,
const Matrix3x3& normalMatrix,
const Appearance& appearance
) override;
HRESULT FinalizeFrame() override;
private:
void AddTextureDestroyCallback(Uint32 id, IDirect3DRMTexture* texture);
void AddMeshDestroyCallback(Uint32 id, IDirect3DRMMesh* mesh);
std::vector<GLES2TextureCacheEntry> m_textures;
std::vector<GLES2MeshCacheEntry> m_meshs;
D3DRMMATRIX4D m_projection;
SDL_Surface* m_renderedImage;
DWORD m_width, m_height;
std::vector<SceneLight> m_lights;
SDL_GLContext m_context;
GLuint m_fbo;
GLuint m_colorTex;
GLuint m_depthRb;
GLuint m_shaderProgram;
};
inline static void OpenGLES2Renderer_EnumDevice(LPD3DENUMDEVICESCALLBACK cb, void* ctx)
{
Direct3DRMRenderer* device = OpenGLES2Renderer::Create(640, 480);
if (device) {
EnumDevice(cb, ctx, device, OpenGLES2_GUID);
delete device;
}
}