diff options
Diffstat (limited to 'drivers/gles2/rasterizer_storage_gles2.cpp')
| -rw-r--r-- | drivers/gles2/rasterizer_storage_gles2.cpp | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/drivers/gles2/rasterizer_storage_gles2.cpp b/drivers/gles2/rasterizer_storage_gles2.cpp index 9f511cd787..1584295b4c 100644 --- a/drivers/gles2/rasterizer_storage_gles2.cpp +++ b/drivers/gles2/rasterizer_storage_gles2.cpp @@ -82,6 +82,8 @@ GLuint RasterizerStorageGLES2::system_fbo = 0; #define _DEPTH_COMPONENT24_OES 0x81A6 #ifndef GLES_OVER_GL +#define glClearDepth glClearDepthf + // enable extensions manually for android and ios #include <dlfcn.h> // needed to load extensions @@ -4586,6 +4588,9 @@ void RasterizerStorageGLES2::_render_target_allocate(RenderTarget *rt) { color_format = GL_RGB; } + rt->used_dof_blur_near = false; + rt->mip_maps_allocated = false; + { /* Front FBO */ @@ -4780,6 +4785,127 @@ void RasterizerStorageGLES2::_render_target_allocate(RenderTarget *rt) { } } + // Allocate mipmap chains for post_process effects + if (!rt->flags[RasterizerStorage::RENDER_TARGET_NO_3D] && rt->width >= 2 && rt->height >= 2) { + + for (int i = 0; i < 2; i++) { + + ERR_FAIL_COND(rt->mip_maps[i].sizes.size()); + int w = rt->width; + int h = rt->height; + + if (i > 0) { + w >>= 1; + h >>= 1; + } + + int level = 0; + int fb_w = w; + int fb_h = h; + + while (true) { + + RenderTarget::MipMaps::Size mm; + mm.width = w; + mm.height = h; + rt->mip_maps[i].sizes.push_back(mm); + + w >>= 1; + h >>= 1; + + if (w < 2 || h < 2) + break; + + level++; + } + + GLsizei width = fb_w; + GLsizei height = fb_h; + + if (config.render_to_mipmap_supported) { + + glGenTextures(1, &rt->mip_maps[i].color); + glBindTexture(GL_TEXTURE_2D, rt->mip_maps[i].color); + + for (int l = 0; l < level + 1; l++) { + glTexImage2D(GL_TEXTURE_2D, l, color_internal_format, width, height, 0, color_format, color_type, NULL); + width = MAX(1, (width / 2)); + height = MAX(1, (height / 2)); + } +#ifdef GLES_OVER_GL + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, level); +#endif + } else { + + // Can't render to specific levels of a mipmap in ES 2.0 or Webgl so create a texture for each level + for (int l = 0; l < level + 1; l++) { + glGenTextures(1, &rt->mip_maps[i].sizes.write[l].color); + glBindTexture(GL_TEXTURE_2D, rt->mip_maps[i].sizes[l].color); + glTexImage2D(GL_TEXTURE_2D, 0, color_internal_format, width, height, 0, color_format, color_type, NULL); + width = MAX(1, (width / 2)); + height = MAX(1, (height / 2)); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); + } + } + + glDisable(GL_SCISSOR_TEST); + glColorMask(1, 1, 1, 1); + glDepthMask(GL_TRUE); + + for (int j = 0; j < rt->mip_maps[i].sizes.size(); j++) { + + RenderTarget::MipMaps::Size &mm = rt->mip_maps[i].sizes.write[j]; + + glGenFramebuffers(1, &mm.fbo); + glBindFramebuffer(GL_FRAMEBUFFER, mm.fbo); + + if (config.render_to_mipmap_supported) { + + glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, rt->mip_maps[i].color, j); + } else { + + glBindTexture(GL_TEXTURE_2D, rt->mip_maps[i].sizes[j].color); + glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, rt->mip_maps[i].sizes[j].color, 0); + } + + bool used_depth = false; + if (j == 0 && i == 0) { //use always + glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, rt->depth, 0); + used_depth = true; + } + + GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER); + if (status != GL_FRAMEBUFFER_COMPLETE) { + WARN_PRINT_ONCE("Cannot allocate mipmaps for 3D post processing effects"); + glBindFramebuffer(GL_FRAMEBUFFER, RasterizerStorageGLES2::system_fbo); + return; + } + + glClearColor(1.0, 0.0, 1.0, 0.0); + glViewport(0, 0, rt->mip_maps[i].sizes[j].width, rt->mip_maps[i].sizes[j].height); + glClear(GL_COLOR_BUFFER_BIT); + if (used_depth) { + glClearDepth(1.0); + glClear(GL_DEPTH_BUFFER_BIT); + } + } + + rt->mip_maps[i].levels = level; + + if (config.render_to_mipmap_supported) { + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); + } + } + rt->mip_maps_allocated = true; + } + glBindFramebuffer(GL_FRAMEBUFFER, RasterizerStorageGLES2::system_fbo); } @@ -4837,6 +4963,20 @@ void RasterizerStorageGLES2::_render_target_clear(RenderTarget *rt) { rt->copy_screen_effect.color = 0; } + for (int i = 0; i < 2; i++) { + if (rt->mip_maps[i].sizes.size()) { + for (int j = 0; j < rt->mip_maps[i].sizes.size(); j++) { + glDeleteFramebuffers(1, &rt->mip_maps[i].sizes[j].fbo); + glDeleteTextures(1, &rt->mip_maps[i].sizes[j].color); + } + + glDeleteTextures(1, &rt->mip_maps[i].color); + rt->mip_maps[i].sizes.clear(); + rt->mip_maps[i].levels = 0; + rt->mip_maps[i].color = 0; + } + } + if (rt->multisample_active) { glDeleteFramebuffers(1, &rt->multisample_fbo); rt->multisample_fbo = 0; @@ -5617,6 +5757,13 @@ void RasterizerStorageGLES2::initialize() { config.multisample_supported = config.extensions.has("GL_EXT_framebuffer_multisample") || config.extensions.has("GL_EXT_multisampled_render_to_texture") || config.extensions.has("GL_APPLE_framebuffer_multisample"); #ifdef GLES_OVER_GL + config.render_to_mipmap_supported = true; +#else + //check if mipmaps can be used for SCREEN_TEXTURE and Glow on Mobile and web platforms + config.render_to_mipmap_supported = config.extensions.has("GL_OES_fbo_render_mipmap") && config.extensions.has("GL_EXT_texture_lod"); +#endif + +#ifdef GLES_OVER_GL config.use_rgba_2d_shadows = false; config.support_depth_texture = true; config.use_rgba_3d_shadows = false; |