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Use extensions to probe for 24 or 32bit depth buffer

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This commit is contained in:
Anders Jenbo 2025-06-17 12:49:00 +02:00
parent 3cfa3f5bec
commit 1d72239f6f
1 changed files with 18 additions and 1 deletions
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19
miniwin/src/d3drm/backends/opengles2/renderer.cpp
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@ -1,6 +1,7 @@
#include "d3drmrenderer_opengles2.h"
#include "meshutils.h"
#include <GLES2/gl2ext.h>
#include <GLES2/gl2.h>
#include <SDL3/SDL.h>
#include <algorithm>
@ -76,7 +77,16 @@ Direct3DRMRenderer* OpenGLES2Renderer::Create(DWORD width, DWORD height)
GLuint depthRb;
glGenRenderbuffers(1, &depthRb);
glBindRenderbuffer(GL_RENDERBUFFER, depthRb);
glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT16, width, height);
const char* extensions = (const char*)glGetString(GL_EXTENSIONS);
if (strstr(extensions, "GL_OES_depth24")) {
glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT24_OES, width, height);
}
else if (strstr(extensions, "GL_OES_depth32")) {
glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT32_OES, width, height);
}
else {
glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT16, width, height);
}
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, depthRb);
if (glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE) {
@ -454,6 +464,13 @@ void OpenGLES2Renderer::GetDesc(D3DDEVICEDESC* halDesc, D3DDEVICEDESC* helDesc)
halDesc->dcmColorModel = D3DCOLORMODEL::RGB;
halDesc->dwFlags = D3DDD_DEVICEZBUFFERBITDEPTH;
halDesc->dwDeviceZBufferBitDepth = DDBD_16;
const char* extensions = (const char*)glGetString(GL_EXTENSIONS);
if (strstr(extensions, "GL_OES_depth24")) {
halDesc->dwDeviceZBufferBitDepth |= DDBD_24;
}
if (strstr(extensions, "GL_OES_depth32")) {
halDesc->dwDeviceZBufferBitDepth |= DDBD_32;
}
helDesc->dwDeviceRenderBitDepth = DDBD_32;
halDesc->dpcTriCaps.dwTextureCaps = D3DPTEXTURECAPS_PERSPECTIVE;
halDesc->dpcTriCaps.dwShadeCaps = D3DPSHADECAPS_ALPHAFLATBLEND;