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Diffstat (limited to 'src/rend2/tr_postprocess.c')
| -rw-r--r-- | src/rend2/tr_postprocess.c | 488 |
1 files changed, 0 insertions, 488 deletions
diff --git a/src/rend2/tr_postprocess.c b/src/rend2/tr_postprocess.c deleted file mode 100644 index a15c9b7a..00000000 --- a/src/rend2/tr_postprocess.c +++ /dev/null @@ -1,488 +0,0 @@ -/* -=========================================================================== -Copyright (C) 2011 Andrei Drexler, Richard Allen, James Canete - -This file is part of Reaction source code. - -Reaction source code is free software; you can redistribute it -and/or modify it under the terms of the GNU General Public License as -published by the Free Software Foundation; either version 2 of the License, -or (at your option) any later version. - -Reaction source code is distributed in the hope that it will be -useful, but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with Reaction source code; if not, write to the Free Software -Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA -=========================================================================== -*/ - -#include "tr_local.h" - -void RB_ToneMap(FBO_t *hdrFbo, int autoExposure) -{ - vec4i_t srcBox, dstBox; - vec4_t color; - static int lastFrameCount = 0; - - if (autoExposure) - { - if (lastFrameCount == 0 || tr.frameCount < lastFrameCount || tr.frameCount - lastFrameCount > 5) - { - // determine average log luminance - FBO_t *srcFbo, *dstFbo, *tmp; - int size = 256; - - lastFrameCount = tr.frameCount; - - VectorSet4(dstBox, 0, 0, size, size); - - srcFbo = hdrFbo; - dstFbo = tr.textureScratchFbo[0]; - FBO_Blit(srcFbo, NULL, NULL, dstFbo, dstBox, &tr.calclevels4xShader[0], NULL, 0); - - srcFbo = tr.textureScratchFbo[0]; - dstFbo = tr.textureScratchFbo[1]; - - // downscale to 1x1 texture - while (size > 1) - { - VectorSet4(srcBox, 0, 0, size, size); - //size >>= 2; - size >>= 1; - VectorSet4(dstBox, 0, 0, size, size); - - if (size == 1) - dstFbo = tr.targetLevelsFbo; - - //FBO_Blit(targetFbo, srcBox, NULL, tr.textureScratchFbo[nextScratch], dstBox, &tr.calclevels4xShader[1], NULL, 0); - FBO_FastBlit(srcFbo, srcBox, dstFbo, dstBox, GL_COLOR_BUFFER_BIT, GL_LINEAR); - - tmp = srcFbo; - srcFbo = dstFbo; - dstFbo = tmp; - } - } - - // blend with old log luminance for gradual change - VectorSet4(srcBox, 0, 0, 0, 0); - - color[0] = - color[1] = - color[2] = 1.0f; - if (glRefConfig.textureFloat) - color[3] = 0.03f; - else - color[3] = 0.1f; - - FBO_Blit(tr.targetLevelsFbo, srcBox, NULL, tr.calcLevelsFbo, NULL, NULL, color, GLS_SRCBLEND_SRC_ALPHA | GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA); - } - - // tonemap - color[0] = - color[1] = - color[2] = pow(2, r_cameraExposure->value); //exp2(r_cameraExposure->value); - color[3] = 1.0f; - - if (autoExposure) - GL_BindToTMU(tr.calcLevelsImage, TB_LEVELSMAP); - else - GL_BindToTMU(tr.fixedLevelsImage, TB_LEVELSMAP); - - FBO_Blit(hdrFbo, NULL, NULL, tr.screenScratchFbo, NULL, &tr.tonemapShader, color, 0); -} - - -void RB_BokehBlur(float blur) -{ -// vec4i_t srcBox, dstBox; - vec4_t color; - - blur *= 10.0f; - - if (blur < 0.004f) - return; - - if (glRefConfig.framebufferObject) - { - // bokeh blur - if (blur > 0.0f) - { - // create a quarter texture - //FBO_Blit(NULL, NULL, NULL, tr.quarterFbo[0], NULL, NULL, NULL, 0); - FBO_FastBlit(tr.screenScratchFbo, NULL, tr.quarterFbo[0], NULL, GL_COLOR_BUFFER_BIT, GL_LINEAR); - } - -#ifndef HQ_BLUR - if (blur > 1.0f) - { - // create a 1/16th texture - //FBO_Blit(tr.quarterFbo[0], NULL, NULL, tr.textureScratchFbo[0], NULL, NULL, NULL, 0); - FBO_FastBlit(tr.quarterFbo[0], NULL, tr.textureScratchFbo[0], NULL, GL_COLOR_BUFFER_BIT, GL_LINEAR); - } -#endif - - if (blur > 0.0f && blur <= 1.0f) - { - // Crossfade original with quarter texture - VectorSet4(color, 1, 1, 1, blur); - - FBO_Blit(tr.quarterFbo[0], NULL, NULL, tr.screenScratchFbo, NULL, NULL, color, GLS_SRCBLEND_SRC_ALPHA | GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA); - } -#ifndef HQ_BLUR - // ok blur, but can see some pixelization - else if (blur > 1.0f && blur <= 2.0f) - { - // crossfade quarter texture with 1/16th texture - FBO_Blit(tr.quarterFbo[0], NULL, NULL, tr.screenScratchFbo, NULL, NULL, NULL, 0); - - VectorSet4(color, 1, 1, 1, blur - 1.0f); - - FBO_Blit(tr.textureScratchFbo[0], NULL, NULL, tr.screenScratchFbo, NULL, NULL, color, GLS_SRCBLEND_SRC_ALPHA | GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA); - } - else if (blur > 2.0f) - { - // blur 1/16th texture then replace - int i; - - for (i = 0; i < 2; i++) - { - vec2_t blurTexScale; - float subblur; - - subblur = ((blur - 2.0f) / 2.0f) / 3.0f * (float)(i + 1); - - blurTexScale[0] = - blurTexScale[1] = subblur; - - color[0] = - color[1] = - color[2] = 0.5f; - color[3] = 1.0f; - - if (i != 0) - FBO_Blit(tr.textureScratchFbo[0], NULL, blurTexScale, tr.textureScratchFbo[1], NULL, &tr.bokehShader, color, GLS_SRCBLEND_ONE | GLS_DSTBLEND_ONE); - else - FBO_Blit(tr.textureScratchFbo[0], NULL, blurTexScale, tr.textureScratchFbo[1], NULL, &tr.bokehShader, color, 0); - } - - FBO_Blit(tr.textureScratchFbo[1], NULL, NULL, tr.screenScratchFbo, NULL, &tr.textureColorShader, NULL, 0); - } -#else // higher quality blur, but slower - else if (blur > 1.0f) - { - // blur quarter texture then replace - int i; - - src = tr.quarterFbo[0]; - dst = tr.quarterFbo[1]; - - VectorSet4(color, 0.5f, 0.5f, 0.5f, 1); - - for (i = 0; i < 2; i++) - { - vec2_t blurTexScale; - float subblur; - - subblur = (blur - 1.0f) / 2.0f * (float)(i + 1); - - blurTexScale[0] = - blurTexScale[1] = subblur; - - color[0] = - color[1] = - color[2] = 1.0f; - if (i != 0) - color[3] = 1.0f; - else - color[3] = 0.5f; - - FBO_Blit(tr.quarterFbo[0], NULL, blurTexScale, tr.quarterFbo[1], NULL, &tr.bokehShader, color, GLS_SRCBLEND_SRC_ALPHA | GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA); - } - - FBO_Blit(tr.quarterFbo[1], NULL, NULL, tr.screenScratchFbo, NULL, &tr.textureColorShader, NULL, 0); - } -#endif - } -} - - -static void RB_RadialBlur(FBO_t *srcFbo, FBO_t *dstFbo, int passes, float stretch, float x, float y, float w, float h, float xcenter, float ycenter, float alpha) -{ - vec4i_t srcBox, dstBox; - vec4_t color; - const float inc = 1.f / passes; - const float mul = powf(stretch, inc); - float scale; - - { - vec2_t texScale; - - texScale[0] = - texScale[1] = 1.0f; - - alpha *= inc; - VectorSet4(color, alpha, alpha, alpha, 1.0f); - - VectorSet4(srcBox, 0, 0, srcFbo->width, srcFbo->height); - VectorSet4(dstBox, x, y, w, h); - FBO_Blit(srcFbo, srcBox, texScale, dstFbo, dstBox, &tr.textureColorShader, color, 0); - - --passes; - scale = mul; - while (passes > 0) - { - float iscale = 1.f / scale; - float s0 = xcenter * (1.f - iscale); - float t0 = (1.0f - ycenter) * (1.f - iscale); - float s1 = iscale + s0; - float t1 = iscale + t0; - - srcBox[0] = s0 * srcFbo->width; - srcBox[1] = t0 * srcFbo->height; - srcBox[2] = (s1 - s0) * srcFbo->width; - srcBox[3] = (t1 - t0) * srcFbo->height; - - FBO_Blit(srcFbo, srcBox, texScale, dstFbo, dstBox, &tr.textureColorShader, color, GLS_SRCBLEND_ONE | GLS_DSTBLEND_ONE ); - - scale *= mul; - --passes; - } - } -} - - -static qboolean RB_UpdateSunFlareVis(void) -{ - GLuint sampleCount = 0; - if (!glRefConfig.occlusionQuery) - return qtrue; - - tr.sunFlareQueryIndex ^= 1; - if (!tr.sunFlareQueryActive[tr.sunFlareQueryIndex]) - return qtrue; - - /* debug code */ - if (0) - { - int iter; - for (iter=0 ; ; ++iter) - { - GLint available = 0; - qglGetQueryObjectivARB(tr.sunFlareQuery[tr.sunFlareQueryIndex], GL_QUERY_RESULT_AVAILABLE_ARB, &available); - if (available) - break; - } - - ri.Printf(PRINT_DEVELOPER, "Waited %d iterations\n", iter); - } - - qglGetQueryObjectuivARB(tr.sunFlareQuery[tr.sunFlareQueryIndex], GL_QUERY_RESULT_ARB, &sampleCount); - return sampleCount > 0; -} - -void RB_SunRays(void) -{ - vec4i_t srcBox, dstBox; - vec4_t color; - float dot; - const float cutoff = 0.25f; - qboolean colorize = qtrue; - -// float w, h, w2, h2; - matrix_t mvp; - vec4_t pos, hpos; - - dot = DotProduct(tr.sunDirection, backEnd.viewParms.or.axis[0]); - if (dot < cutoff) - return; - - if (!RB_UpdateSunFlareVis()) - return; - - // From RB_DrawSun() - { - float dist; - matrix_t trans, model, mvp; - - Matrix16Translation( backEnd.viewParms.or.origin, trans ); - Matrix16Multiply( backEnd.viewParms.world.modelMatrix, trans, model ); - Matrix16Multiply(backEnd.viewParms.projectionMatrix, model, mvp); - - dist = backEnd.viewParms.zFar / 1.75; // div sqrt(3) - - VectorScale( tr.sunDirection, dist, pos ); - } - - // project sun point - //Matrix16Multiply(backEnd.viewParms.projectionMatrix, backEnd.viewParms.world.modelMatrix, mvp); - Matrix16Transform(mvp, pos, hpos); - - // transform to UV coords - hpos[3] = 0.5f / hpos[3]; - - pos[0] = 0.5f + hpos[0] * hpos[3]; - pos[1] = 0.5f - hpos[1] * hpos[3]; - - // viewport dimensions - // JBravo: Apparently not used -/* w = glConfig.vidWidth; - h = glConfig.vidHeight; - w2 = glConfig.vidWidth / 2; - h2 = glConfig.vidHeight / 2; */ - - // initialize quarter buffers - { - float mul = 1.f; - vec2_t texScale; - - texScale[0] = - texScale[1] = 1.0f; - - VectorSet4(color, mul, mul, mul, 1); - - // first, downsample the framebuffer - if (colorize) - { - FBO_FastBlit(tr.screenScratchFbo, NULL, tr.quarterFbo[0], NULL, GL_COLOR_BUFFER_BIT, GL_LINEAR); - FBO_Blit(tr.sunRaysFbo, NULL, NULL, tr.quarterFbo[0], NULL, NULL, color, GLS_SRCBLEND_DST_COLOR | GLS_DSTBLEND_ZERO); - } - else - { - FBO_FastBlit(tr.sunRaysFbo, NULL, tr.quarterFbo[0], NULL, GL_COLOR_BUFFER_BIT, GL_LINEAR); - } - } - - // radial blur passes, ping-ponging between the two quarter-size buffers - { - const float stretch_add = 2.f/3.f; - float stretch = 1.f + stretch_add; - int i; - for (i=0; i<2; ++i) - { - RB_RadialBlur(tr.quarterFbo[i&1], tr.quarterFbo[(~i) & 1], 5, stretch, 0.f, 0.f, tr.quarterFbo[0]->width, tr.quarterFbo[0]->height, pos[0], pos[1], 1.125f); - stretch += stretch_add; - } - } - - // add result back on top of the main buffer - { - float mul = 1.f; - vec2_t texScale; - - texScale[0] = - texScale[1] = 1.0f; - - VectorSet4(color, mul, mul, mul, 1); - - VectorSet4(srcBox, 0, 0, tr.quarterFbo[0]->width, tr.quarterFbo[0]->height); - VectorSet4(dstBox, 0, 0, glConfig.vidWidth, glConfig.vidHeight); - FBO_Blit(tr.quarterFbo[0], srcBox, texScale, tr.screenScratchFbo, dstBox, &tr.textureColorShader, color, GLS_SRCBLEND_ONE | GLS_DSTBLEND_ONE); - } -} - -static void RB_BlurAxis(FBO_t *srcFbo, FBO_t *dstFbo, float strength, qboolean horizontal) -{ - float dx, dy; - float xmul, ymul; - float weights[3] = { - 0.227027027f, - 0.316216216f, - 0.070270270f, - }; - float offsets[3] = { - 0.f, - 1.3846153846f, - 3.2307692308f, - }; - - xmul = horizontal; - ymul = 1.f - xmul; - - xmul *= strength; - ymul *= strength; - - { - vec4i_t srcBox, dstBox; - vec4_t color; - vec2_t texScale; - - texScale[0] = - texScale[1] = 1.0f; - - VectorSet4(color, weights[0], weights[0], weights[0], 1.0f); - VectorSet4(srcBox, 0, 0, srcFbo->width, srcFbo->height); - VectorSet4(dstBox, 0, 0, dstFbo->width, dstFbo->height); - FBO_Blit(srcFbo, srcBox, texScale, dstFbo, dstBox, &tr.textureColorShader, color, 0 ); - - VectorSet4(color, weights[1], weights[1], weights[1], 1.0f); - dx = offsets[1] * xmul; - dy = offsets[1] * ymul; - VectorSet4(srcBox, dx, dy, srcFbo->width, srcFbo->height); - FBO_Blit(srcFbo, srcBox, texScale, dstFbo, dstBox, &tr.textureColorShader, color, GLS_SRCBLEND_ONE | GLS_DSTBLEND_ONE ); - VectorSet4(srcBox, -dx, -dy, srcFbo->width, srcFbo->height); - FBO_Blit(srcFbo, srcBox, texScale, dstFbo, dstBox, &tr.textureColorShader, color, GLS_SRCBLEND_ONE | GLS_DSTBLEND_ONE ); - - VectorSet4(color, weights[2], weights[2], weights[2], 1.0f); - dx = offsets[2] * xmul; - dy = offsets[2] * ymul; - VectorSet4(srcBox, dx, dy, srcFbo->width, srcFbo->height); - FBO_Blit(srcFbo, srcBox, texScale, dstFbo, dstBox, &tr.textureColorShader, color, GLS_SRCBLEND_ONE | GLS_DSTBLEND_ONE ); - VectorSet4(srcBox, -dx, -dy, srcFbo->width, srcFbo->height); - FBO_Blit(srcFbo, srcBox, texScale, dstFbo, dstBox, &tr.textureColorShader, color, GLS_SRCBLEND_ONE | GLS_DSTBLEND_ONE ); - } -} - -static void RB_HBlur(FBO_t *srcFbo, FBO_t *dstFbo, float strength) -{ - RB_BlurAxis(srcFbo, dstFbo, strength, qtrue); -} - -static void RB_VBlur(FBO_t *srcFbo, FBO_t *dstFbo, float strength) -{ - RB_BlurAxis(srcFbo, dstFbo, strength, qfalse); -} - -void RB_GaussianBlur(float blur) -{ - //float mul = 1.f; - float factor = Com_Clamp(0.f, 1.f, blur); - - if (factor <= 0.f) - return; - - { - vec4i_t srcBox, dstBox; - vec4_t color; - vec2_t texScale; - - texScale[0] = - texScale[1] = 1.0f; - - VectorSet4(color, 1, 1, 1, 1); - - // first, downsample the framebuffer - FBO_FastBlit(tr.screenScratchFbo, NULL, tr.quarterFbo[0], NULL, GL_COLOR_BUFFER_BIT, GL_LINEAR); - FBO_FastBlit(tr.quarterFbo[0], NULL, tr.textureScratchFbo[0], NULL, GL_COLOR_BUFFER_BIT, GL_LINEAR); - - // set the alpha channel - VectorSet4(srcBox, 0, 0, tr.whiteImage->width, tr.whiteImage->height); - VectorSet4(dstBox, 0, 0, tr.textureScratchFbo[0]->width, tr.textureScratchFbo[0]->height); - qglColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_TRUE); - FBO_BlitFromTexture(tr.whiteImage, srcBox, texScale, tr.textureScratchFbo[0], dstBox, &tr.textureColorShader, color, GLS_DEPTHTEST_DISABLE); - qglColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE); - - // blur the tiny buffer horizontally and vertically - RB_HBlur(tr.textureScratchFbo[0], tr.textureScratchFbo[1], factor); - RB_VBlur(tr.textureScratchFbo[1], tr.textureScratchFbo[0], factor); - - // finally, merge back to framebuffer - VectorSet4(srcBox, 0, 0, tr.textureScratchFbo[0]->width, tr.textureScratchFbo[0]->height); - VectorSet4(dstBox, 0, 0, glConfig.vidWidth, glConfig.vidHeight); - color[3] = factor; - FBO_Blit(tr.textureScratchFbo[0], srcBox, texScale, tr.screenScratchFbo, dstBox, &tr.textureColorShader, color, GLS_SRCBLEND_SRC_ALPHA | GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA); - } -} |