drm: add matrix_cubesphere_cubemap

drm/matrix_cubesphere_cubemap.fs.asm

@@ -0,0 +1,15 @@
+-- temp[0] -- position (world space)
+-- temp[1] -- normal
+-- temp[2] -- light pos (world space)
+-- temp[3] -- texture
+
+-- PIXSIZE 4
+
+TEX TEX_SEM_WAIT TEX_SEM_ACQUIRE
+  temp[3].rgba = LD tex[0].rgba temp[0].rgba ;
+
+OUT TEX_SEM_WAIT
+src0.rgb = temp[3] ,
+src0.a = temp[3] :
+  out[0].a    = MAX src0.a src0.a ,
+  out[0].rgb  = MAX src0.rgb src0.rgb ;

drm/matrix_cubesphere_cubemap.vs.asm

@@ -0,0 +1,42 @@
+--
+-- dot(m[0], v), dot(m[1], v), dot(m[2], v), dot(m[3], v)
+--
+
+-- input[0] -- position
+-- input[1] -- texture
+-- input[2] -- normal
+
+-- consts[0] -- trans
+-- consts[4] -- world_trans
+-- consts[8] -- normal_trans
+
+-- out[0] -- position clip space
+-- out[1] -- texture
+-- out[2] -- normal
+-- out[3] -- object position world space
+-- out[4] -- light position world space
+
+-- position clip space
+temp[1].x   = VE_DOT   const[0].xyzw    input[0].xyzw ;
+temp[1].y   = VE_DOT   const[1].xyzw    input[0].xyzw ;
+temp[1].z   = VE_DOT   const[2].xyzw    input[0].xyzw ;
+temp[1].w   = VE_DOT   const[3].xyzw    input[0].xyzw ;
+
+-- position world space
+temp[2].xyzw = VE_ADD   input[0].xyzw    input[0].0000 ;
+
+-- normal world space
+temp[3].x   = VE_DOT   const[4].xyz0    input[2].xyz0 ;
+temp[3].y   = VE_DOT   const[5].xyz0    input[2].xyz0 ;
+temp[3].z   = VE_DOT   const[6].xyz0    input[2].xyz0 ;
+
+-- position (clip space)
+out[0].xyzw = VE_ADD    temp[1].xyzw    const[0].0000 ;
+-- position (world space)
+out[1].xyzw = VE_ADD    temp[2].xyzw    const[0].0000 ;
+-- normal
+out[2].xyzw = VE_ADD    temp[3].xyz0    const[0].0000 ;
+-- light pos (world space)
+out[3].xyzw = VE_ADD   const[8].xyzw    const[8].0000 ;
+-- texture
+out[4].xyzw = VE_ADD   input[1].xy00    const[0].0000 ;

model/cube.h

@@ -0,0 +1,109 @@
+#pragma once
+
+const vec3 cube_position[] = {
+    {1.000000f, 1.000000f, -1.000000f},
+    {1.000000f, -1.000000f, -1.000000f},
+    {1.000000f, 1.000000f, 1.000000f},
+    {1.000000f, -1.000000f, 1.000000f},
+    {-1.000000f, 1.000000f, -1.000000f},
+    {-1.000000f, -1.000000f, -1.000000f},
+    {-1.000000f, 1.000000f, 1.000000f},
+    {-1.000000f, -1.000000f, 1.000000f},
+};
+
+const vec2 cube_texture[] = {
+    {1.000000f, 0.000000f},
+    {0.000000f, 1.000000f},
+    {0.000000f, 0.000000f},
+    {1.000000f, 1.000000f},
+};
+
+const vec3 cube_normal[] = {
+    {-0.0000f, 1.0000f, -0.0000f},
+    {-0.0000f, -0.0000f, 1.0000f},
+    {-1.0000f, -0.0000f, -0.0000f},
+    {-0.0000f, -1.0000f, -0.0000f},
+    {1.0000f, -0.0000f, -0.0000f},
+    {-0.0000f, -0.0000f, -1.0000f},
+};
+
+const triangle_t cube_Cube_triangle[] = {
+    {
+        {4, 0, 0},
+        {2, 1, 0},
+        {0, 2, 0},
+    },
+    {
+        {2, 0, 1},
+        {7, 1, 1},
+        {3, 2, 1},
+    },
+    {
+        {6, 0, 2},
+        {5, 1, 2},
+        {7, 2, 2},
+    },
+    {
+        {1, 0, 3},
+        {7, 1, 3},
+        {5, 2, 3},
+    },
+    {
+        {0, 0, 4},
+        {3, 1, 4},
+        {1, 2, 4},
+    },
+    {
+        {4, 0, 5},
+        {1, 1, 5},
+        {5, 2, 5},
+    },
+    {
+        {4, 0, 0},
+        {6, 3, 0},
+        {2, 1, 0},
+    },
+    {
+        {2, 0, 1},
+        {6, 3, 1},
+        {7, 1, 1},
+    },
+    {
+        {6, 0, 2},
+        {4, 3, 2},
+        {5, 1, 2},
+    },
+    {
+        {1, 0, 3},
+        {3, 3, 3},
+        {7, 1, 3},
+    },
+    {
+        {0, 0, 4},
+        {2, 3, 4},
+        {3, 1, 4},
+    },
+    {
+        {4, 0, 5},
+        {0, 3, 5},
+        {1, 1, 5},
+    },
+};
+
+const object cube_Cube = {
+    .triangle = &cube_Cube_triangle[0],
+    .triangle_count = 12,
+};
+
+const object * cube_object[] = {
+    &cube_Cube,
+};
+
+const model cube_model = {
+    .position = cube_position,
+    .texture = cube_texture,
+    .normal = cube_normal,
+    .object = cube_object,
+    .object_count = 1
+};
+

shader_examples/mesa/matrix_cubesphere_cubemap.fs.txt

@@ -0,0 +1,12 @@
+0x00007807,
+0x02400000,
+0xe400e400,
+0x00000000,
+0x00000000,
+0x00000000,
+0x00078005,
+0x08020000,
+0x08020000,
+0x1c440220,
+0x1c60c003,
+0x00000005,

shader_examples/mesa/matrix_cubesphere_cubemap.vs.txt

@@ -0,0 +1,16 @@
+0x00100201,
+0x00d10002,
+0x01510001,
+0x01248001,
+0x00200201,
+0x00d10022,
+0x01510001,
+0x01248001,
+0x00c00201,
+0x00d10062,
+0x01510001,
+0x01248001,
+0x00702203,
+0x01d10001,
+0x01248001,
+0x01248001,