[Mesa-dev] [PATCH 07/12] glsl/gsraytrace: Use GLSL 1.5 instead of 1.2.
Fabian Bieler
fabianbieler at fastmail.fm
Wed Feb 19 15:17:08 PST 2014
This commit prepares the transition from extension to core geometry shaders.
(Core geometry shaders require GLSL version 1.5 or later.)
This includes using generic vertex attributes instead of built-ins.
Signed-off-by: Fabian Bieler <fabianbieler at fastmail.fm>
Reviewed-by: Brian Paul <brianp at vmware.com>
Reviewed-by: Ian Romanick <ian.d.romanick at intel.com>
---
src/glsl/gsraytrace.cpp | 58 +++++++++++++++++++++++++++----------------------
1 file changed, 32 insertions(+), 26 deletions(-)
diff --git a/src/glsl/gsraytrace.cpp b/src/glsl/gsraytrace.cpp
index ef67643..f9e708f 100644
--- a/src/glsl/gsraytrace.cpp
+++ b/src/glsl/gsraytrace.cpp
@@ -56,6 +56,7 @@ static GLuint pgQuery;
static GLuint dst;
static GLuint eyeRaysAsPoints;
+int posAttribLoc;
int orig_tAttribLoc;
int dir_idxAttribLoc;
int uv_stateAttribLoc;
@@ -69,7 +70,7 @@ float rot[9] = {1,0,0, 0,1,0, 0,0,1};
static const char* vsSource =
" \n"
-"#version 120 \n"
+"#version 150 \n"
"#line " S__LINE__ "\n"
"#define SHADOWS \n"
"#define RECURSION \n"
@@ -83,9 +84,10 @@ static const char* vsSource =
"uniform vec4 backgroundColor; \n"
"uniform int emitNoMore; \n"
" \n"
-"attribute vec4 orig_t; \n"
-"attribute vec4 dir_idx; \n"
-"attribute vec4 uv_state; \n"
+"in vec4 pos; \n"
+"in vec4 orig_t; \n"
+"in vec4 dir_idx; \n"
+"in vec4 uv_state; \n"
"// uv_state.z = state \n"
"// uv_state.w = type (ray generation) \n"
" \n"
@@ -98,9 +100,9 @@ static const char* vsSource =
"// 0: not shadow ray, eye ray \n"
"// 1: shadow ray \n"
" \n"
-"varying vec4 orig_t1; \n"
-"varying vec4 dir_idx1; \n"
-"varying vec4 uv_state1; \n"
+"out vec4 orig_t1; \n"
+"out vec4 dir_idx1; \n"
+"out vec4 uv_state1; \n"
" \n"
" \n"
"//----------------------------------------------------------------\n"
@@ -224,7 +226,7 @@ static const char* vsSource =
" if (state == 0) \n"
" { \n"
" // generate eye rays\n"
-" ray = Ray(cameraPos, normalize(vec3(gl_Vertex.x, gl_Vertex.y, -1.0) * rot3));\n"
+" ray = Ray(cameraPos, normalize(vec3(pos.x, pos.y, -1.0) * rot3)); \n"
" isec.t = INF;\n"
" isec.idx = -1;\n"
" state = 1;\n"
@@ -240,7 +242,7 @@ static const char* vsSource =
" //else state == 3 \n"
" \n"
" //outVS(); \n"
-" gl_Position = gl_Vertex; \n"
+" gl_Position = pos; \n"
" orig_t1.xyz = ray.orig; \n"
" orig_t1.w = isec.t; \n"
" dir_idx1.xyz = ray.dir; \n"
@@ -251,7 +253,7 @@ static const char* vsSource =
static const char* gsSource =
-"#version 120 \n"
+"#version 150 \n"
"#line " S__LINE__ "\n"
"#extension GL_ARB_geometry_shader4: require \n"
" \n"
@@ -310,13 +312,13 @@ static const char* gsSource =
" return isec; \n"
"} \n"
" \n"
-"varying in vec4 orig_t1[1]; \n"
-"varying in vec4 dir_idx1[1]; \n"
-"varying in vec4 uv_state1[1]; \n"
+"in vec4 orig_t1[1]; \n"
+"in vec4 dir_idx1[1]; \n"
+"in vec4 uv_state1[1]; \n"
" \n"
-"varying out vec4 orig_t2; \n"
-"varying out vec4 dir_idx2; \n"
-"varying out vec4 uv_state2; \n"
+"out vec4 orig_t2; \n"
+"out vec4 dir_idx2; \n"
+"out vec4 uv_state2; \n"
" \n"
" \n"
"void \n"
@@ -390,7 +392,7 @@ static const char* gsSource =
"}\n";
static const char* fsSource =
-"#version 120 \n"
+"#version 150 \n"
"#line " S__LINE__ "\n"
" \n"
"#define SHADOWS \n"
@@ -448,9 +450,9 @@ static const char* fsSource =
" return isec;\n"
"}\n"
"\n"
-"varying vec4 orig_t2;\n"
-"varying vec4 dir_idx2;\n"
-"varying vec4 uv_state2;\n"
+"in vec4 orig_t2;\n"
+"in vec4 dir_idx2;\n"
+"in vec4 uv_state2;\n"
"\n"
"vec3\n"
"idx2color(const in int idx)\n"
@@ -596,9 +598,11 @@ Draw(void)
glUniformMatrix3fv(glGetUniformLocation(program, "rot3"), 1, 0, rot);
+ //gs.gs->getVertexAttribLocation("pos", gs.posAttribLoc);
//gs.gs->getVertexAttribLocation("orig_t", gs.orig_tAttribLoc);
//gs.gs->getVertexAttribLocation("dir_idx", gs.dir_idxAttribLoc);
//gs.gs->getVertexAttribLocation("uv_state", gs.uv_stateAttribLoc);
+ posAttribLoc = glGetAttribLocation(program, "pos");
orig_tAttribLoc = glGetAttribLocation(program, "orig_t");
dir_idxAttribLoc = glGetAttribLocation(program, "dir_idx");
uv_stateAttribLoc = glGetAttribLocation(program, "uv_state");
@@ -612,8 +616,9 @@ Draw(void)
//gs.eyeRaysAsPoints->bindAs(ARRAY);
glBindBuffer(GL_ARRAY_BUFFER, eyeRaysAsPoints);
{
- glEnableClientState(GL_VERTEX_ARRAY);
- glVertexPointer(4, GL_FLOAT, sizeof(GSRay), 0);
+ glEnableVertexAttribArray(posAttribLoc);
+ glVertexAttribPointer(posAttribLoc, 4, GL_FLOAT, GL_FALSE,
+ sizeof(GSRay), (void*)offsetof(GSRay, pos));
glEnableVertexAttribArray(orig_tAttribLoc);
glVertexAttribPointer(orig_tAttribLoc, 4, GL_FLOAT, GL_FALSE,
@@ -641,7 +646,7 @@ Draw(void)
glDisableVertexAttribArray(orig_tAttribLoc);
- glDisableClientState(GL_VERTEX_ARRAY);
+ glDisableVertexAttribArray(posAttribLoc);
}
//gs.eyeRaysAsPoints->unbindAs(ARRAY);
glBindBuffer(GL_ARRAY_BUFFER, 0);
@@ -670,8 +675,9 @@ Draw(void)
//gs.dst->bindAs(ARRAY);
glBindBuffer(GL_ARRAY_BUFFER, dst);
{
- glEnableClientState(GL_VERTEX_ARRAY);
- glVertexPointer(4, GL_FLOAT, sizeof(GSRay), 0);
+ glEnableVertexAttribArray(posAttribLoc);
+ glVertexAttribPointer(posAttribLoc, 4, GL_FLOAT, GL_FALSE,
+ sizeof(GSRay), (void*)offsetof(GSRay, pos));
glEnableVertexAttribArray(orig_tAttribLoc);
glVertexAttribPointer(orig_tAttribLoc, 4, GL_FLOAT, GL_FALSE,
@@ -701,7 +707,7 @@ Draw(void)
glDisableVertexAttribArray(orig_tAttribLoc);
- glDisableClientState(GL_VERTEX_ARRAY);
+ glDisableVertexAttribArray(posAttribLoc);
}
//gs.dst->unbindAs(ARRAY);
glBindBuffer(GL_ARRAY_BUFFER, 0);
--
1.8.3.2
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