void
piglit_init(int argc, char**argv)
{
GLuint tex;
piglit_require_extension("GL_ARB_gpu_shader5");
glGenFramebuffers(1, &ms_fbo);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, ms_fbo);
glGenTextures(1, &tex);
glBindTexture(GL_TEXTURE_2D_MULTISAMPLE, tex);
glTexImage2DMultisample(GL_TEXTURE_2D_MULTISAMPLE, 4,
GL_RGBA, 64, 64, GL_TRUE);
glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
GL_TEXTURE_2D_MULTISAMPLE, tex, 0);
if (!piglit_check_gl_error(GL_NO_ERROR)) {
printf("fbo setup failed.\n");
piglit_report_result(PIGLIT_SKIP);
}
/* Test quantity varies from -1 to +1 over 64 pixels --
* so moving 1px changes its value by 1/32.
*/
draw_prog = piglit_build_simple_program(
"#version 150\n"
"uniform vec2 sample_pos;\n"
"in vec2 p;\n"
"out vec2 test;\n"
"out vec2 ref;\n"
"void main() {\n"
" gl_Position = vec4(p, 0, 1);\n"
" test = p;\n"
" ref = p;\n"
" ref.xy += sample_pos / 32;\n"
"}\n",
"#version 150\n"
"#extension GL_ARB_gpu_shader5: require\n"
"const int sample_id = 0;\n"
"in vec2 test;\n"
"in vec2 ref;\n"
"void main() {\n"
" gl_FragColor = vec4(" GAIN " * abs(\n"
" interpolateAtSample(test, sample_id) - ref), 0, 1);\n"
"}\n");
if (!draw_prog) {
printf("draw_prog compile/link failed\n");
piglit_report_result(PIGLIT_FAIL);
}
test_prog = piglit_build_simple_program(
"#version 150\n"
"in vec2 p;\n"
"void main() {\n"
" gl_Position = vec4(p, 0, 1);\n"
"}\n",
"#version 150\n"
"uniform sampler2DMS s;\n"
"void main() {\n"
" vec4 temp = \n"
" texelFetch(s, ivec2(gl_FragCoord.xy), 0) +\n"
" texelFetch(s, ivec2(gl_FragCoord.xy), 1) +\n"
" texelFetch(s, ivec2(gl_FragCoord.xy), 2) +\n"
" texelFetch(s, ivec2(gl_FragCoord.xy), 3);\n"
" gl_FragColor = vec4(temp.x, 1-temp.y, temp.z, temp.w);\n"
"}\n");
if (!test_prog) {
printf("test_prog compile/link failed\n");
piglit_report_result(PIGLIT_FAIL);
}
sample_pos_loc = glGetUniformLocation(draw_prog, "sample_pos");
glUseProgram(test_prog);
glUniform1i(glGetUniformLocation(test_prog, "s"), 0);
if (!piglit_check_gl_error(GL_NO_ERROR)) {
printf("shader setup failed\n");
piglit_report_result(PIGLIT_SKIP);
}
glGenVertexArrays(1, &vao);
glBindVertexArray(vao);
glEnableVertexAttribArray(0);
glGenBuffers(1, &bo);
glBindBuffer(GL_ARRAY_BUFFER, bo);
glBufferData(GL_ARRAY_BUFFER, sizeof(verts), verts, GL_STATIC_DRAW);
glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 0, (GLvoid const *)0);
}
bool
GBuffer::initialize( const Viewport& vp, bool multisample, int samples ) {
int width =vp.width - vp.x;
int height =vp.height - vp.y;
/* First time initialize? */
if( !m_fbo ) {
glEnable( GL_MULTISAMPLE );
glGenFramebuffers(1, &m_fbo);
}
else {
glDeleteTextures( NUM_TEXTURES, m_textures);
}
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, m_fbo);
// glRenderbufferStorageMultisample( GL_RENDERBUFFER, 2, GL_DEPTH24_STENCIL8, width, height );
glGenTextures( NUM_TEXTURES, m_textures );
/* Depth */
if( multisample ) {
glBindTexture( GL_TEXTURE_2D_MULTISAMPLE, m_textures[DEPTH_TEXTURE] );
glTexImage2DMultisample( GL_TEXTURE_2D_MULTISAMPLE, samples, GL_DEPTH_COMPONENT32F, width, height, false );
/* glTexParameteri(GL_TEXTURE_2D, GL_DEPTH_TEXTURE_MODE, GL_LUMINANCE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);*/
glFramebufferTexture2D( GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D_MULTISAMPLE, m_textures[DEPTH_TEXTURE], 0 );
} else {
glBindTexture(GL_TEXTURE_2D, m_textures[DEPTH_TEXTURE]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT24, width, height, 0, GL_DEPTH_COMPONENT, GL_FLOAT,
NULL);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, m_textures[DEPTH_TEXTURE], 0);
}
/* Diffuse + spec */
if( multisample ) {
glBindTexture( GL_TEXTURE_2D_MULTISAMPLE, m_textures[DIFFUSE_SPEC_TEXTURE] );
glTexImage2DMultisample( GL_TEXTURE_2D_MULTISAMPLE, samples, GL_RGBA16F, width, height, false );
glFramebufferTexture2D( GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D_MULTISAMPLE, m_textures[DIFFUSE_SPEC_TEXTURE], 0 );
} else {
glBindTexture(GL_TEXTURE_2D, m_textures[DIFFUSE_SPEC_TEXTURE]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA16F, width, height, 0, GL_RGBA, GL_FLOAT, NULL);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, m_textures[DIFFUSE_SPEC_TEXTURE], 0);
}
/* printf("GL error, status: 0x%x\n", glGetError());*/
/* Normals */
if( multisample ) {
glBindTexture( GL_TEXTURE_2D_MULTISAMPLE, m_textures[NORMAL_TEXTURE] );
glTexImage2DMultisample( GL_TEXTURE_2D_MULTISAMPLE, samples, GL_RGB16F, width, height, false );
glFramebufferTexture2D( GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT1, GL_TEXTURE_2D_MULTISAMPLE, m_textures[NORMAL_TEXTURE], 0 );
} else {
glBindTexture(GL_TEXTURE_2D, m_textures[NORMAL_TEXTURE]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB16F, width, height, 0, GL_RGB, GL_FLOAT, NULL);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT1, GL_TEXTURE_2D, m_textures[NORMAL_TEXTURE], 0);
}
/* Position */
if( multisample ) {
glBindTexture( GL_TEXTURE_2D_MULTISAMPLE, m_textures[POSITION_TEXTURE] );
glTexImage2DMultisample( GL_TEXTURE_2D_MULTISAMPLE, samples, GL_RGBA16F, width, height, false );
glFramebufferTexture2D( GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT2, GL_TEXTURE_2D_MULTISAMPLE, m_textures[POSITION_TEXTURE], 0 );
} else {
glBindTexture(GL_TEXTURE_2D, m_textures[POSITION_TEXTURE]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA16F, width, height, 0, GL_RGBA, GL_FLOAT, NULL);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT2, GL_TEXTURE_2D, m_textures[POSITION_TEXTURE], 0);
}
GLenum DrawBuffers[] = { /*GL_DEPTH_ATTACHMENT, */GL_COLOR_ATTACHMENT0, GL_COLOR_ATTACHMENT1, GL_COLOR_ATTACHMENT2/*, GL_COLOR_ATTACHMENT3 */};
glDrawBuffers(NUM_TEXTURES-1, DrawBuffers);
GLenum Status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
if (Status != GL_FRAMEBUFFER_COMPLETE) {
printf("FB error, status: 0x%x\n", Status);
return false;
}
m_width =width;
m_height =height;
m_multisample =multisample;
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
return true;
}
GLUSboolean init(GLUSvoid)
{
GLUSshape backgroundSphere;
GLUSshape wavefront;
// 6 sides of diffuse and specular; all roughness levels of specular.
GLUShdrimage image[6 * NUMBER_ROUGHNESS + 6];
// The look up table (LUT) is stored in a raw binary file.
GLUSbinaryfile rawimage;
GLUStextfile vertexSource;
GLUStextfile fragmentSource;
GLchar buffer[27] = "doge2/doge2_POS_X_00_s.hdr";
GLint i, k, m;
//
glusLoadTextFile("../Example33/shader/brdf.vert.glsl", &vertexSource);
glusLoadTextFile("../Example33/shader/brdf.frag.glsl", &fragmentSource);
glusBuildProgramFromSource(&g_modelProgram, (const GLchar**)&vertexSource.text, 0, 0, 0, (const GLchar**)&fragmentSource.text);
glusDestroyTextFile(&vertexSource);
glusDestroyTextFile(&fragmentSource);
g_viewProjectionMatrixModelLocation = glGetUniformLocation(g_modelProgram.program, "u_viewProjectionMatrix");
g_modelMatrixModelLocation = glGetUniformLocation(g_modelProgram.program, "u_modelMatrix");
g_normalMatrixModelLocation = glGetUniformLocation(g_modelProgram.program, "u_normalMatrix");
g_eyeModelLocation = glGetUniformLocation(g_modelProgram.program, "u_eye");
g_textureSpecularModelLocation = glGetUniformLocation(g_modelProgram.program, "u_textureSpecular");
g_textureDiffuseModelLocation = glGetUniformLocation(g_modelProgram.program, "u_textureDiffuse");
g_textureLUTModelLocation = glGetUniformLocation(g_modelProgram.program, "u_textureLUT");
g_colorMaterialModelLocation = glGetUniformLocation(g_modelProgram.program, "u_colorMaterial");
g_roughnessMaterialModelLocation = glGetUniformLocation(g_modelProgram.program, "u_roughnessMaterial");
g_roughnessScaleModelLocation = glGetUniformLocation(g_modelProgram.program, "u_roughnessScale");
g_R0MaterialModelLocation = glGetUniformLocation(g_modelProgram.program, "u_R0Material");
g_vertexModelLocation = glGetAttribLocation(g_modelProgram.program, "a_vertex");
g_normalModelLocation = glGetAttribLocation(g_modelProgram.program, "a_normal");
//
glusLoadTextFile("../Example33/shader/fullscreen.vert.glsl", &vertexSource);
glusLoadTextFile("../Example33/shader/fullscreen.frag.glsl", &fragmentSource);
glusBuildProgramFromSource(&g_fullscreenProgram, (const GLchar**)&vertexSource.text, 0, 0, 0, (const GLchar**)&fragmentSource.text);
glusDestroyTextFile(&vertexSource);
glusDestroyTextFile(&fragmentSource);
//
g_framebufferTextureFullscreenLocation = glGetUniformLocation(g_fullscreenProgram.program, "u_framebufferTexture");
g_msaaSamplesFullscreenLocation = glGetUniformLocation(g_fullscreenProgram.program, "u_msaaSamples");
g_exposureFullscreenLocation = glGetUniformLocation(g_fullscreenProgram.program, "u_exposure");
g_gammaFullscreenLocation = glGetUniformLocation(g_fullscreenProgram.program, "u_gamma");
//
//
glusLoadTextFile("../Example33/shader/background.vert.glsl", &vertexSource);
glusLoadTextFile("../Example33/shader/background.frag.glsl", &fragmentSource);
glusBuildProgramFromSource(&g_backgroundProgram, (const GLUSchar**)&vertexSource.text, 0, 0, 0, (const GLUSchar**)&fragmentSource.text);
glusDestroyTextFile(&vertexSource);
glusDestroyTextFile(&fragmentSource);
//
g_viewProjectionMatrixBackgroundLocation = glGetUniformLocation(g_backgroundProgram.program, "u_viewProjectionMatrix");
g_textureBackgroundLocation = glGetUniformLocation(g_backgroundProgram.program, "u_texture");
g_vertexBackgroundLocation = glGetAttribLocation(g_backgroundProgram.program, "a_vertex");
//
// Setting up the full screen frame buffer.
//
glGenTextures(1, &g_fullscreenTexture);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D_MULTISAMPLE, g_fullscreenTexture);
// Create MSAA texture.
glTexImage2DMultisample(GL_TEXTURE_2D_MULTISAMPLE, MSAA_SAMPLES, GL_RGB32F, SCREEN_WIDTH, SCREEN_HEIGHT, GL_TRUE);
glBindTexture(GL_TEXTURE_2D_MULTISAMPLE, 0);
// No need to access the depth buffer, so a render buffer is sufficient.
glGenRenderbuffers(1, &g_fullscreenDepthRenderbuffer);
glBindRenderbuffer(GL_RENDERBUFFER, g_fullscreenDepthRenderbuffer);
glRenderbufferStorageMultisample(GL_RENDERBUFFER, MSAA_SAMPLES, GL_DEPTH_COMPONENT, SCREEN_WIDTH, SCREEN_HEIGHT);
glBindRenderbuffer(GL_RENDERBUFFER, 0);
//
glGenFramebuffers(1, &g_fullscreenFBO);
glBindFramebuffer(GL_FRAMEBUFFER, g_fullscreenFBO);
// Attach the color buffer ...
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D_MULTISAMPLE, g_fullscreenTexture, 0);
// ... and the depth buffer.
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, g_fullscreenDepthRenderbuffer);
if (glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE)
{
printf("GL_FRAMEBUFFER_COMPLETE error 0x%x", glCheckFramebufferStatus(GL_FRAMEBUFFER));
return GLUS_FALSE;
}
glBindFramebuffer(GL_FRAMEBUFFER, 0);
//
//
//
for (i = 0; i < 2; i++)
{
if (i == 0)
{
buffer[21] = 's';
}
else
{
buffer[21] = 'd';
}
for (k = 0; k < NUMBER_ROUGHNESS; k++)
{
if (i == 1 && k > 0)
{
continue;
}
buffer[18] = '0' + k / 10;
buffer[19] = '0' + k % 10;
for (m = 0; m < 6; m++)
{
if (m % 2 == 0)
{
buffer[12] = 'P';
buffer[13] = 'O';
buffer[14] = 'S';
}
else
{
buffer[12] = 'N';
buffer[13] = 'E';
buffer[14] = 'G';
}
switch (m)
{
case 0:
case 1:
buffer[16] = 'X';
break;
case 2:
case 3:
buffer[16] = 'Y';
break;
case 4:
case 5:
buffer[16] = 'Z';
break;
}
printf("Loading '%s' ...", buffer);
if (!glusLoadHdrImage(buffer, &image[i*NUMBER_ROUGHNESS*6 + k*6 + m]))
{
printf(" error!\n");
continue;
}
printf(" done.\n");
}
}
}
glGenTextures(1, &g_texture[0]);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_CUBE_MAP_ARRAY, g_texture[0]);
glTexImage3D(GL_TEXTURE_CUBE_MAP_ARRAY, 0, GL_RGB32F, image[0].width, image[0].height, 6*NUMBER_ROUGHNESS, 0, GL_RGB, GL_FLOAT, 0);
glusLogPrintError(GLUS_LOG_INFO, "glTexImage3D()");
for (i = 0; i < NUMBER_ROUGHNESS; i++)
{
for (k = 0; k < 6; k++)
{
glTexSubImage3D(GL_TEXTURE_CUBE_MAP_ARRAY, 0, 0, 0, 6*i + k, image[i*6 + k].width, image[i*6 + k].height, 1, image[i*6 + k].format, GL_FLOAT, image[i*6 + k].data);
glusLogPrintError(GLUS_LOG_INFO, "glTexSubImage3D() %d %d", i, k);
}
}
glTexParameteri(GL_TEXTURE_CUBE_MAP_ARRAY, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_CUBE_MAP_ARRAY, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_CUBE_MAP_ARRAY, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_CUBE_MAP_ARRAY, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glBindTexture(GL_TEXTURE_CUBE_MAP_ARRAY, 0);
//
glGenTextures(1, &g_texture[1]);
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_CUBE_MAP, g_texture[1]);
for (i = 0; i < 6; i++)
{
glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, image[i + 6*NUMBER_ROUGHNESS].format, image[i + 6*NUMBER_ROUGHNESS].width, image[i + 6*NUMBER_ROUGHNESS].height, 0, image[i + 6*NUMBER_ROUGHNESS].format, GL_FLOAT, image[i + 6*NUMBER_ROUGHNESS].data);
glusLogPrintError(GLUS_LOG_INFO, "glTexImage2D() %d", i);
}
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glBindTexture(GL_TEXTURE_CUBE_MAP, 0);
//
printf("Loading 'doge2/EnvironmentBRDF_1024.data' ...");
if (!glusLoadBinaryFile("doge2/EnvironmentBRDF_1024.data", &rawimage))
{
printf(" error!\n");
}
else
{
printf(" done.\n");
}
glGenTextures(1, &g_texture[2]);
glActiveTexture(GL_TEXTURE2);
glBindTexture(GL_TEXTURE_2D, g_texture[2]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RG32F, 1024, 1024, 0, GL_RG, GL_FLOAT, (GLfloat*)rawimage.binary);
glusLogPrintError(GLUS_LOG_INFO, "glTexImage2D()");
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glBindTexture(GL_TEXTURE_2D, 0);
glusDestroyBinaryFile(&rawimage);
//
for (i = 0; i < 2; i++)
{
for (k = 0; k < NUMBER_ROUGHNESS; k++)
{
if (i == 1 && k > 0)
{
continue;
}
for (m = 0; m < 6; m++)
{
glusDestroyHdrImage(&image[i*NUMBER_ROUGHNESS*6 + k*6 + m]);
}
}
}
//
glusCreateSpheref(&backgroundSphere, 500.0f, 32);
g_numberIndicesBackground = backgroundSphere.numberIndices;
glGenBuffers(1, &g_verticesBackgroundVBO);
glBindBuffer(GL_ARRAY_BUFFER, g_verticesBackgroundVBO);
glBufferData(GL_ARRAY_BUFFER, backgroundSphere.numberVertices * 4 * sizeof(GLfloat), (GLfloat*)backgroundSphere.vertices, GL_STATIC_DRAW);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glGenBuffers(1, &g_indicesBackgroundVBO);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, g_indicesBackgroundVBO);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, backgroundSphere.numberIndices * sizeof(GLuint), (GLuint*)backgroundSphere.indices, GL_STATIC_DRAW);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glusDestroyShapef(&backgroundSphere);
//
//
// Use a helper function to load an wavefront object file.
glusLoadObjFile("venusm.obj", &wavefront);
g_numberVerticesModel = wavefront.numberVertices;
glGenBuffers(1, &g_verticesModelVBO);
glBindBuffer(GL_ARRAY_BUFFER, g_verticesModelVBO);
glBufferData(GL_ARRAY_BUFFER, wavefront.numberVertices * 4 * sizeof(GLfloat), (GLfloat*)wavefront.vertices, GL_STATIC_DRAW);
glGenBuffers(1, &g_normalsModelVBO);
glBindBuffer(GL_ARRAY_BUFFER, g_normalsModelVBO);
glBufferData(GL_ARRAY_BUFFER, wavefront.numberVertices * 3 * sizeof(GLfloat), (GLfloat*)wavefront.normals, GL_STATIC_DRAW);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glusDestroyShapef(&wavefront);
//
glUseProgram(g_modelProgram.program);
glUniform4fv(g_eyeModelLocation, 1, g_eye);
glUniform1i(g_textureSpecularModelLocation, 0);
glUniform1i(g_textureDiffuseModelLocation, 1);
glUniform1i(g_textureLUTModelLocation, 2);
glUniform1f(g_roughnessScaleModelLocation, (GLfloat)(NUMBER_ROUGHNESS - 1));
glGenVertexArrays(1, &g_modelVAO);
glBindVertexArray(g_modelVAO);
glBindBuffer(GL_ARRAY_BUFFER, g_verticesModelVBO);
glVertexAttribPointer(g_vertexModelLocation, 4, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(g_vertexModelLocation);
glBindBuffer(GL_ARRAY_BUFFER, g_normalsModelVBO);
glVertexAttribPointer(g_normalModelLocation, 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(g_normalModelLocation);
//
glUseProgram(g_fullscreenProgram.program);
glUniform1i(g_framebufferTextureFullscreenLocation, 0);
glUniform1i(g_msaaSamplesFullscreenLocation, MSAA_SAMPLES);
glGenVertexArrays(1, &g_fullscreenVAO);
glBindVertexArray(g_fullscreenVAO);
//
glUseProgram(g_backgroundProgram.program);
glUniform1i(g_textureBackgroundLocation, 0);
glGenVertexArrays(1, &g_backgroundVAO);
glBindVertexArray(g_backgroundVAO);
glBindBuffer(GL_ARRAY_BUFFER, g_verticesBackgroundVBO);
glVertexAttribPointer(g_vertexBackgroundLocation, 4, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(g_vertexBackgroundLocation);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, g_indicesBackgroundVBO);
//
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glClearDepth(1.0f);
glEnable(GL_CULL_FACE);
return GLUS_TRUE;
}
static GPUTexture *GPU_texture_create_nD(
int w, int h, int n, const float *fpixels, int depth,
GPUHDRType hdr_type, int components, int samples,
char err_out[256])
{
GLenum type, format, internalformat;
void *pixels = NULL;
if (samples) {
CLAMP_MAX(samples, GPU_max_color_texture_samples());
}
GPUTexture *tex = MEM_callocN(sizeof(GPUTexture), "GPUTexture");
tex->w = w;
tex->h = h;
tex->number = -1;
tex->refcount = 1;
tex->target = (n == 1) ? GL_TEXTURE_1D : (samples ? GL_TEXTURE_2D_MULTISAMPLE : GL_TEXTURE_2D);
tex->target_base = (n == 1) ? GL_TEXTURE_1D : GL_TEXTURE_2D;
tex->depth = depth;
tex->fb_attachment = -1;
glGenTextures(1, &tex->bindcode);
if (!tex->bindcode) {
if (err_out) {
BLI_snprintf(err_out, 256, "GPUTexture: texture create failed: %d",
(int)glGetError());
}
else {
fprintf(stderr, "GPUTexture: texture create failed: %d\n",
(int)glGetError());
}
GPU_texture_free(tex);
return NULL;
}
if (!GPU_full_non_power_of_two_support()) {
tex->w = power_of_2_max_i(tex->w);
tex->h = power_of_2_max_i(tex->h);
}
tex->number = 0;
glBindTexture(tex->target, tex->bindcode);
if (depth) {
type = GL_UNSIGNED_BYTE;
format = GL_DEPTH_COMPONENT;
internalformat = GL_DEPTH_COMPONENT;
}
else {
type = GL_FLOAT;
if (components == 4) {
format = GL_RGBA;
switch (hdr_type) {
case GPU_HDR_NONE:
internalformat = GL_RGBA8;
break;
/* the following formats rely on ARB_texture_float or OpenGL 3.0 */
case GPU_HDR_HALF_FLOAT:
internalformat = GL_RGBA16F_ARB;
break;
case GPU_HDR_FULL_FLOAT:
internalformat = GL_RGBA32F_ARB;
break;
default:
break;
}
}
else if (components == 2) {
/* these formats rely on ARB_texture_rg or OpenGL 3.0 */
format = GL_RG;
switch (hdr_type) {
case GPU_HDR_NONE:
internalformat = GL_RG8;
break;
case GPU_HDR_HALF_FLOAT:
internalformat = GL_RG16F;
break;
case GPU_HDR_FULL_FLOAT:
internalformat = GL_RG32F;
break;
default:
break;
}
}
if (fpixels && hdr_type == GPU_HDR_NONE) {
type = GL_UNSIGNED_BYTE;
pixels = GPU_texture_convert_pixels(w * h, fpixels);
}
}
if (tex->target == GL_TEXTURE_1D) {
glTexImage1D(tex->target, 0, internalformat, tex->w, 0, format, type, NULL);
if (fpixels) {
glTexSubImage1D(tex->target, 0, 0, w, format, type,
pixels ? pixels : fpixels);
if (tex->w > w) {
GPU_glTexSubImageEmpty(tex->target, format, w, 0, tex->w - w, 1);
}
}
}
else {
if (samples) {
glTexImage2DMultisample(tex->target, samples, internalformat, tex->w, tex->h, true);
}
else {
glTexImage2D(tex->target, 0, internalformat, tex->w, tex->h, 0,
format, type, NULL);
}
if (fpixels) {
glTexSubImage2D(tex->target, 0, 0, 0, w, h,
format, type, pixels ? pixels : fpixels);
if (tex->w > w)
GPU_glTexSubImageEmpty(tex->target, format, w, 0, tex->w - w, tex->h);
if (tex->h > h)
GPU_glTexSubImageEmpty(tex->target, format, 0, h, w, tex->h - h);
}
}
if (pixels)
MEM_freeN(pixels);
if (depth) {
glTexParameteri(tex->target_base, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(tex->target_base, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(tex->target_base, GL_TEXTURE_COMPARE_MODE, GL_COMPARE_R_TO_TEXTURE);
glTexParameteri(tex->target_base, GL_TEXTURE_COMPARE_FUNC, GL_LEQUAL);
glTexParameteri(tex->target_base, GL_DEPTH_TEXTURE_MODE, GL_INTENSITY);
}
else {
glTexParameteri(tex->target_base, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(tex->target_base, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
}
if (tex->target_base != GL_TEXTURE_1D) {
glTexParameteri(tex->target_base, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(tex->target_base, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
}
else
glTexParameteri(tex->target_base, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
return tex;
}
/**
* This function does any needed initialization on the rendering context.
* This is the first opportunity to do any OpenGL related tasks.
*/
void SetupRC()
{
// Blue background
glClearColor(0.0f, 0.0f, 1.0f, 1.0f );
shaderManager.init();
glEnable(GL_DEPTH_TEST);
gltCreateCylinder(bckgrndCylBatch, 4.0f, 4.0f, 5.2f, 1024, 1);
gltCreateDisk(diskBatch, 0.0f, 1.5f, 40, 10);
glass1Batch.begin(GL_TRIANGLE_FAN, 4, 1);
glass1Batch.Vertex3f(-1.0f, -1.0f, 0.0f);
glass1Batch.Vertex3f(1.0f, -1.0f, 0.0f);
glass1Batch.Vertex3f(1.0f, 1.0f, 0.0f);
glass1Batch.Vertex3f(-1.0f, 1.0f, 0.0f);
glass1Batch.end();
glass2Batch.begin(GL_TRIANGLE_FAN, 4, 1);
glass2Batch.Vertex3f(0.0f, 1.0f, 0.0f);
glass2Batch.Vertex3f(1.0f, 0.0f, 0.0f);
glass2Batch.Vertex3f(0.0f, -1.0f, 0.0f);
glass2Batch.Vertex3f(-1.0f, 0.0f, 0.0f);
glass2Batch.end();
glass3Batch.begin(GL_TRIANGLE_FAN, 3, 1);
glass3Batch.Vertex3f(0.0f, 1.0f, 0.0f);
glass3Batch.Vertex3f(1.0f, -1.0f, 0.0f);
glass3Batch.Vertex3f(-1.0f, -1.0f, 0.0f);
glass3Batch.end();
glass4Batch.begin(GL_TRIANGLE_FAN, 4, 1);
glass4Batch.Vertex3f(-1.0f, 1.0f, 0.0f);
glass4Batch.Vertex3f(1.0f, 0.5f, 0.0f);
glass4Batch.Vertex3f(1.0f, -1.0f, 0.0f);
glass4Batch.Vertex3f(-1.0f, -0.5f, 0.0f);
glass4Batch.end();
glGenTextures(2, textures);
glBindTexture(GL_TEXTURE_2D, textures[0]);
gltLoadTextureBMP("marble.bmp", GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR, GL_REPEAT);
glBindTexture(GL_TEXTURE_2D, textures[1]);
gltLoadTextureBMP("start_line.bmp", GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR, GL_REPEAT);
// create and bind an FBO
glGenFramebuffers(1, &msFBO);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, msFBO);
// create depth texture
glGenTextures(1, &depthTextureName);
glBindTexture(GL_TEXTURE_2D_MULTISAMPLE, depthTextureName);
glTexImage2DMultisample(GL_TEXTURE_2D_MULTISAMPLE, 8, GL_DEPTH_COMPONENT24, screenWidth, screenHeight, GL_FALSE);
// setup HDR render texture
glGenTextures(1, msTexture);
glBindTexture(GL_TEXTURE_2D_MULTISAMPLE, msTexture[0]);
glTexImage2DMultisample(GL_TEXTURE_2D_MULTISAMPLE, 8, GL_RGBA8, screenWidth, screenHeight, GL_FALSE);
// create and bind FBO
glGenFramebuffers(1, &msFBO);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, msFBO);
// attach texture to first color attachment and depth RBO
glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D_MULTISAMPLE, msTexture[0], 0);
glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D_MULTISAMPLE, depthTextureName, 0);
// reset framebuffer binding
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
// Load oit resolve shader
oitResolve = gltLoadShaderWithFileEx("basic.vs", "oitResolve.fs", 3,
GLT_ATTRIBUTE_VERTEX, "vVertex",
GLT_ATTRIBUTE_NORMAL, "vNormal",
GLT_ATTRIBUTE_TEXTURE0, "vTexCoord0");
glBindFragDataLocation(oitResolve, 0, "oColor");
glLinkProgram(oitResolve);
// Load multisample resolve shader
msResolve = gltLoadShaderWithFileEx("basic.vs", "msResolve.fs", 3,
GLT_ATTRIBUTE_VERTEX, "vVertex",
GLT_ATTRIBUTE_NORMAL, "vNormal",
GLT_ATTRIBUTE_TEXTURE0, "vTexCoord0");
glBindFragDataLocation(msResolve, 0, "oColor");
glLinkProgram(msResolve);
// Make sure all went well
gltCheckErrors(oitResolve);
gltCheckErrors(msResolve);
int numMasks = 0;
glGetIntegerv(GL_MAX_SAMPLE_MASK_WORDS, &numMasks);
log("GL_MAX_SAMPLE_MASK_WORDS: %d", numMasks);
}
FramebufferManager::FramebufferManager(int targetWidth, int targetHeight, int msaaSamples)
{
m_xfbFramebuffer = 0;
m_efbColor = 0;
m_efbDepth = 0;
m_efbColorSwap = 0;
m_resolvedColorTexture = 0;
m_resolvedDepthTexture = 0;
m_targetWidth = targetWidth;
m_targetHeight = targetHeight;
m_msaaSamples = msaaSamples;
// The EFB can be set to different pixel formats by the game through the
// BPMEM_ZCOMPARE register (which should probably have a different name).
// They are:
// - 24-bit RGB (8-bit components) with 24-bit Z
// - 24-bit RGBA (6-bit components) with 24-bit Z
// - Multisampled 16-bit RGB (5-6-5 format) with 16-bit Z
// We only use one EFB format here: 32-bit ARGB with 24-bit Z.
// Multisampling depends on user settings.
// The distinction becomes important for certain operations, i.e. the
// alpha channel should be ignored if the EFB does not have one.
glActiveTexture(GL_TEXTURE9);
GLuint glObj[3];
glGenTextures(3, glObj);
m_efbColor = glObj[0];
m_efbDepth = glObj[1];
m_efbColorSwap = glObj[2];
m_EFBLayers = (g_ActiveConfig.iStereoMode > 0) ? 2 : 1;
m_efbFramebuffer.resize(m_EFBLayers);
m_resolvedFramebuffer.resize(m_EFBLayers);
// OpenGL MSAA textures are a different kind of texture type and must be allocated
// with a different function, so we create them separately.
if (m_msaaSamples <= 1)
{
m_textureType = GL_TEXTURE_2D_ARRAY;
glBindTexture(m_textureType, m_efbColor);
glTexParameteri(m_textureType, GL_TEXTURE_MAX_LEVEL, 0);
glTexImage3D(m_textureType, 0, GL_RGBA, m_targetWidth, m_targetHeight, m_EFBLayers, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
glBindTexture(m_textureType, m_efbDepth);
glTexParameteri(m_textureType, GL_TEXTURE_MAX_LEVEL, 0);
glTexImage3D(m_textureType, 0, GL_DEPTH_COMPONENT32F, m_targetWidth, m_targetHeight, m_EFBLayers, 0, GL_DEPTH_COMPONENT, GL_FLOAT, nullptr);
glBindTexture(m_textureType, m_efbColorSwap);
glTexParameteri(m_textureType, GL_TEXTURE_MAX_LEVEL, 0);
glTexImage3D(m_textureType, 0, GL_RGBA, m_targetWidth, m_targetHeight, m_EFBLayers, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
}
else
{
GLenum resolvedType = GL_TEXTURE_2D_ARRAY;
// Only use a layered multisample texture if needed. Some drivers
// slow down significantly with single-layered multisample textures.
if (m_EFBLayers > 1)
{
m_textureType = GL_TEXTURE_2D_MULTISAMPLE_ARRAY;
if (g_ogl_config.bSupports3DTextureStorage)
{
glBindTexture(m_textureType, m_efbColor);
glTexStorage3DMultisample(m_textureType, m_msaaSamples, GL_RGBA8, m_targetWidth, m_targetHeight, m_EFBLayers, false);
glBindTexture(m_textureType, m_efbDepth);
glTexStorage3DMultisample(m_textureType, m_msaaSamples, GL_DEPTH_COMPONENT32F, m_targetWidth, m_targetHeight, m_EFBLayers, false);
glBindTexture(m_textureType, m_efbColorSwap);
glTexStorage3DMultisample(m_textureType, m_msaaSamples, GL_RGBA8, m_targetWidth, m_targetHeight, m_EFBLayers, false);
glBindTexture(m_textureType, 0);
}
else
{
glBindTexture(m_textureType, m_efbColor);
glTexImage3DMultisample(m_textureType, m_msaaSamples, GL_RGBA, m_targetWidth, m_targetHeight, m_EFBLayers, false);
glBindTexture(m_textureType, m_efbDepth);
glTexImage3DMultisample(m_textureType, m_msaaSamples, GL_DEPTH_COMPONENT32F, m_targetWidth, m_targetHeight, m_EFBLayers, false);
glBindTexture(m_textureType, m_efbColorSwap);
glTexImage3DMultisample(m_textureType, m_msaaSamples, GL_RGBA, m_targetWidth, m_targetHeight, m_EFBLayers, false);
glBindTexture(m_textureType, 0);
}
}
else
{
m_textureType = GL_TEXTURE_2D_MULTISAMPLE;
if (g_ogl_config.bSupports2DTextureStorage)
{
glBindTexture(m_textureType, m_efbColor);
glTexStorage2DMultisample(m_textureType, m_msaaSamples, GL_RGBA8, m_targetWidth, m_targetHeight, false);
glBindTexture(m_textureType, m_efbDepth);
glTexStorage2DMultisample(m_textureType, m_msaaSamples, GL_DEPTH_COMPONENT32F, m_targetWidth, m_targetHeight, false);
glBindTexture(m_textureType, m_efbColorSwap);
glTexStorage2DMultisample(m_textureType, m_msaaSamples, GL_RGBA8, m_targetWidth, m_targetHeight, false);
glBindTexture(m_textureType, 0);
}
else
{
glBindTexture(m_textureType, m_efbColor);
glTexImage2DMultisample(m_textureType, m_msaaSamples, GL_RGBA, m_targetWidth, m_targetHeight, false);
glBindTexture(m_textureType, m_efbDepth);
glTexImage2DMultisample(m_textureType, m_msaaSamples, GL_DEPTH_COMPONENT32F, m_targetWidth, m_targetHeight, false);
glBindTexture(m_textureType, m_efbColorSwap);
glTexImage2DMultisample(m_textureType, m_msaaSamples, GL_RGBA, m_targetWidth, m_targetHeight, false);
glBindTexture(m_textureType, 0);
}
}
// Although we are able to access the multisampled texture directly, we don't do it everywhere.
// The old way is to "resolve" this multisampled texture by copying it into a non-sampled texture.
// This would lead to an unneeded copy of the EFB, so we are going to avoid it.
// But as this job isn't done right now, we do need that texture for resolving:
glGenTextures(2, glObj);
m_resolvedColorTexture = glObj[0];
m_resolvedDepthTexture = glObj[1];
glBindTexture(resolvedType, m_resolvedColorTexture);
glTexParameteri(resolvedType, GL_TEXTURE_MAX_LEVEL, 0);
glTexImage3D(resolvedType, 0, GL_RGBA, m_targetWidth, m_targetHeight, m_EFBLayers, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
glBindTexture(resolvedType, m_resolvedDepthTexture);
glTexParameteri(resolvedType, GL_TEXTURE_MAX_LEVEL, 0);
glTexImage3D(resolvedType, 0, GL_DEPTH_COMPONENT32F, m_targetWidth, m_targetHeight, m_EFBLayers, 0, GL_DEPTH_COMPONENT, GL_FLOAT, nullptr);
// Bind resolved textures to resolved framebuffer.
glGenFramebuffers(m_EFBLayers, m_resolvedFramebuffer.data());
glBindFramebuffer(GL_FRAMEBUFFER, m_resolvedFramebuffer[0]);
FramebufferTexture(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, resolvedType, m_resolvedColorTexture, 0);
FramebufferTexture(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, resolvedType, m_resolvedDepthTexture, 0);
// Bind all the other layers as separate FBOs for blitting.
for (unsigned int i = 1; i < m_EFBLayers; i++)
{
glBindFramebuffer(GL_FRAMEBUFFER, m_resolvedFramebuffer[i]);
glFramebufferTextureLayer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, m_resolvedColorTexture, 0, i);
glFramebufferTextureLayer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, m_resolvedDepthTexture, 0, i);
}
}
// Create XFB framebuffer; targets will be created elsewhere.
glGenFramebuffers(1, &m_xfbFramebuffer);
// Bind target textures to EFB framebuffer.
glGenFramebuffers(m_EFBLayers, m_efbFramebuffer.data());
glBindFramebuffer(GL_FRAMEBUFFER, m_efbFramebuffer[0]);
FramebufferTexture(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, m_textureType, m_efbColor, 0);
FramebufferTexture(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, m_textureType, m_efbDepth, 0);
// Bind all the other layers as separate FBOs for blitting.
for (unsigned int i = 1; i < m_EFBLayers; i++)
{
glBindFramebuffer(GL_FRAMEBUFFER, m_efbFramebuffer[i]);
glFramebufferTextureLayer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, m_efbColor, 0, i);
glFramebufferTextureLayer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, m_efbDepth, 0, i);
}
// EFB framebuffer is currently bound, make sure to clear its alpha value to 1.f
glViewport(0, 0, m_targetWidth, m_targetHeight);
glScissor(0, 0, m_targetWidth, m_targetHeight);
glClearColor(0.f, 0.f, 0.f, 1.f);
glClearDepthf(1.0f);
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
// reinterpret pixel format
const char* vs = m_EFBLayers > 1 ?
"void main(void) {\n"
" vec2 rawpos = vec2(gl_VertexID&1, gl_VertexID&2);\n"
" gl_Position = vec4(rawpos*2.0-1.0, 0.0, 1.0);\n"
"}\n" :
"flat out int layer;\n"
"void main(void) {\n"
" layer = 0;\n"
" vec2 rawpos = vec2(gl_VertexID&1, gl_VertexID&2);\n"
" gl_Position = vec4(rawpos*2.0-1.0, 0.0, 1.0);\n"
"}\n";
// The way to sample the EFB is based on the on the current configuration.
// As we use the same sampling way for both interpreting shaders, the sampling
// shader are generated first:
std::string sampler;
if (m_msaaSamples <= 1)
{
// non-msaa, so just fetch the pixel
sampler =
"SAMPLER_BINDING(9) uniform sampler2DArray samp9;\n"
"vec4 sampleEFB(ivec3 pos) {\n"
" return texelFetch(samp9, pos, 0);\n"
"}\n";
}
else if (g_ActiveConfig.backend_info.bSupportsSSAA)
{
// msaa + sample shading available, so just fetch the sample
// This will lead to sample shading, but it's the only way to not loose
// the values of each sample.
if (m_EFBLayers > 1)
{
sampler =
"SAMPLER_BINDING(9) uniform sampler2DMSArray samp9;\n"
"vec4 sampleEFB(ivec3 pos) {\n"
" return texelFetch(samp9, pos, gl_SampleID);\n"
"}\n";
}
else
{
sampler =
"SAMPLER_BINDING(9) uniform sampler2DMS samp9;\n"
"vec4 sampleEFB(ivec3 pos) {\n"
" return texelFetch(samp9, pos.xy, gl_SampleID);\n"
"}\n";
}
}
else
{
// msaa without sample shading: calculate the mean value of the pixel
std::stringstream samples;
samples << m_msaaSamples;
if (m_EFBLayers > 1)
{
sampler =
"SAMPLER_BINDING(9) uniform sampler2DMSArray samp9;\n"
"vec4 sampleEFB(ivec3 pos) {\n"
" vec4 color = vec4(0.0, 0.0, 0.0, 0.0);\n"
" for(int i=0; i<" + samples.str() + "; i++)\n"
" color += texelFetch(samp9, pos, 0), i);\n"
" return color / " + samples.str() + ";\n"
"}\n";
}
else
{
sampler =
"SAMPLER_BINDING(9) uniform sampler2DMS samp9;\n"
"vec4 sampleEFB(ivec3 pos) {\n"
" vec4 color = vec4(0.0, 0.0, 0.0, 0.0);\n"
" for(int i=0; i<" + samples.str() + "; i++)\n"
" color += texelFetch(samp9, pos.xy, i);\n"
" return color / " + samples.str() + ";\n"
"}\n";
}
}
std::string ps_rgba6_to_rgb8 = sampler +
"flat in int layer;\n"
"out vec4 ocol0;\n"
"void main()\n"
"{\n"
" ivec4 src6 = ivec4(round(sampleEFB(ivec3(gl_FragCoord.xy, layer)) * 63.f));\n"
" ivec4 dst8;\n"
" dst8.r = (src6.r << 2) | (src6.g >> 4);\n"
" dst8.g = ((src6.g & 0xF) << 4) | (src6.b >> 2);\n"
" dst8.b = ((src6.b & 0x3) << 6) | src6.a;\n"
" dst8.a = 255;\n"
" ocol0 = float4(dst8) / 255.f;\n"
"}";
std::string ps_rgb8_to_rgba6 = sampler +
"flat in int layer;\n"
"out vec4 ocol0;\n"
"void main()\n"
"{\n"
" ivec4 src8 = ivec4(round(sampleEFB(ivec3(gl_FragCoord.xy, layer)) * 255.f));\n"
" ivec4 dst6;\n"
" dst6.r = src8.r >> 2;\n"
" dst6.g = ((src8.r & 0x3) << 4) | (src8.g >> 4);\n"
" dst6.b = ((src8.g & 0xF) << 2) | (src8.b >> 6);\n"
" dst6.a = src8.b & 0x3F;\n"
" ocol0 = float4(dst6) / 63.f;\n"
"}";
std::stringstream vertices, layers;
vertices << m_EFBLayers * 3;
layers << m_EFBLayers;
std::string gs =
"layout(triangles) in;\n"
"layout(triangle_strip, max_vertices = " + vertices.str() + ") out;\n"
"flat out int layer;\n"
"void main()\n"
"{\n"
" for (int j = 0; j < " + layers.str() + "; ++j) {\n"
" for (int i = 0; i < 3; ++i) {\n"
" layer = j;\n"
" gl_Layer = j;\n"
" gl_Position = gl_in[i].gl_Position;\n"
" EmitVertex();\n"
" }\n"
" EndPrimitive();\n"
" }\n"
"}\n";
ProgramShaderCache::CompileShader(m_pixel_format_shaders[0], vs, ps_rgb8_to_rgba6.c_str(), (m_EFBLayers > 1) ? gs : "");
ProgramShaderCache::CompileShader(m_pixel_format_shaders[1], vs, ps_rgba6_to_rgb8.c_str(), (m_EFBLayers > 1) ? gs : "");
ProgramShaderCache::CompileShader(m_EfbPokes,
StringFromFormat(
"in vec2 rawpos;\n"
"in vec4 color0;\n" // color
"in int color1;\n" // depth
"out vec4 v_c;\n"
"out float v_z;\n"
"void main(void) {\n"
" gl_Position = vec4(((rawpos + 0.5) / vec2(640.0, 528.0) * 2.0 - 1.0) * vec2(1.0, -1.0), 0.0, 1.0);\n"
" gl_PointSize = %d.0 / 640.0;\n"
" v_c = color0.bgra;\n"
" v_z = float(color1 & 0xFFFFFF) / 16777216.0;\n"
"}\n", m_targetWidth),
StringFromFormat(
"in vec4 %s_c;\n"
"in float %s_z;\n"
"out vec4 ocol0;\n"
"void main(void) {\n"
" ocol0 = %s_c;\n"
" gl_FragDepth = %s_z;\n"
"}\n", m_EFBLayers > 1 ? "g" : "v", m_EFBLayers > 1 ? "g" : "v", m_EFBLayers > 1 ? "g" : "v", m_EFBLayers > 1 ? "g" : "v"),
m_EFBLayers > 1 ? StringFromFormat(
"layout(points) in;\n"
"layout(points, max_vertices = %d) out;\n"
"in vec4 v_c[1];\n"
"in float v_z[1];\n"
"out vec4 g_c;\n"
"out float g_z;\n"
"void main()\n"
"{\n"
" for (int j = 0; j < %d; ++j) {\n"
" gl_Layer = j;\n"
" gl_Position = gl_in[0].gl_Position;\n"
" gl_PointSize = %d.0 / 640.0;\n"
" g_c = v_c[0];\n"
" g_z = v_z[0];\n"
" EmitVertex();\n"
" EndPrimitive();\n"
" }\n"
"}\n", m_EFBLayers, m_EFBLayers, m_targetWidth) : "");
glGenBuffers(1, &m_EfbPokes_VBO);
glGenVertexArrays(1, &m_EfbPokes_VAO);
glBindBuffer(GL_ARRAY_BUFFER, m_EfbPokes_VBO);
glBindVertexArray(m_EfbPokes_VAO );
glEnableVertexAttribArray(SHADER_POSITION_ATTRIB);
glVertexAttribPointer(SHADER_POSITION_ATTRIB, 2, GL_UNSIGNED_SHORT, 0, sizeof(EfbPokeData), (void*)offsetof(EfbPokeData, x));
glEnableVertexAttribArray(SHADER_COLOR0_ATTRIB);
glVertexAttribPointer(SHADER_COLOR0_ATTRIB, 4, GL_UNSIGNED_BYTE, 1, sizeof(EfbPokeData), (void*)offsetof(EfbPokeData, data));
glEnableVertexAttribArray(SHADER_COLOR1_ATTRIB);
glVertexAttribIPointer(SHADER_COLOR1_ATTRIB, 1, GL_INT, sizeof(EfbPokeData), (void*)offsetof(EfbPokeData, data));
if (GLInterface->GetMode() == GLInterfaceMode::MODE_OPENGL)
glEnable(GL_PROGRAM_POINT_SIZE);
}
