[Piglit] [PATCH 06/10] fbo-generatemipmap-cubemap: new test for cubemaps and cube arrays
Marek Olšák
maraeo at gmail.com
Sat Mar 15 09:53:47 PDT 2014
From: Marek Olšák <marek.olsak at amd.com>
---
tests/all.py | 6 +
tests/fbo/CMakeLists.gl.txt | 1 +
tests/fbo/fbo-generatemipmap-cubemap.c | 499 +++++++++++++++++++++++++++++++++
3 files changed, 506 insertions(+)
create mode 100644 tests/fbo/fbo-generatemipmap-cubemap.c
diff --git a/tests/all.py b/tests/all.py
index bdc4077..65963cc 100644
--- a/tests/all.py
+++ b/tests/all.py
@@ -1682,6 +1682,9 @@ add_concurrent_test(arb_framebuffer_object, 'fbo-drawbuffers-none glColorMaskInd
add_concurrent_test(arb_framebuffer_object, 'fbo-drawbuffers-none glBlendFunci')
add_concurrent_test(arb_framebuffer_object, 'fbo-drawbuffers-none glDrawPixels')
add_concurrent_test(arb_framebuffer_object, 'fbo-drawbuffers-none glBlitFramebuffer')
+add_concurrent_test(arb_framebuffer_object, 'fbo-generatemipmap-cubemap')
+add_concurrent_test(arb_framebuffer_object, 'fbo-generatemipmap-cubemap RGB9_E5')
+add_concurrent_test(arb_framebuffer_object, 'fbo-generatemipmap-cubemap S3TC_DXT1')
# Group ARB_framebuffer_sRGB
arb_framebuffer_srgb = Group()
@@ -2586,6 +2589,9 @@ add_plain_test(arb_texture_cube_map_array, 'arb_texture_cube_map_array-sampler-c
add_concurrent_test(arb_texture_cube_map_array, 'getteximage-targets CUBE_ARRAY')
add_concurrent_test(arb_texture_cube_map_array, 'glsl-resource-not-bound CubeArray')
textureSize_samplers_atcma = ['samplerCubeArray', 'isamplerCubeArray', 'usamplerCubeArray', 'samplerCubeArrayShadow' ];
+add_concurrent_test(arb_texture_cube_map_array, 'fbo-generatemipmap-cubemap array')
+add_concurrent_test(arb_texture_cube_map_array, 'fbo-generatemipmap-cubemap array RGB9_E5')
+add_concurrent_test(arb_texture_cube_map_array, 'fbo-generatemipmap-cubemap array S3TC_DXT1')
import_glsl_parser_tests(arb_texture_cube_map_array,
os.path.join(testsDir, 'spec', 'arb_texture_cube_map_array'),
diff --git a/tests/fbo/CMakeLists.gl.txt b/tests/fbo/CMakeLists.gl.txt
index 588fe26..a2b9bd0 100644
--- a/tests/fbo/CMakeLists.gl.txt
+++ b/tests/fbo/CMakeLists.gl.txt
@@ -55,6 +55,7 @@ piglit_add_executable (fbo-fragcoord fbo-fragcoord.c)
piglit_add_executable (fbo-fragcoord2 fbo-fragcoord2.c)
piglit_add_executable (fbo-generatemipmap fbo-generatemipmap.c)
piglit_add_executable (fbo-generatemipmap-array fbo-generatemipmap-array.c)
+piglit_add_executable (fbo-generatemipmap-cubemap fbo-generatemipmap-cubemap.c)
piglit_add_executable (fbo-generatemipmap-filtering fbo-generatemipmap-filtering.c)
piglit_add_executable (fbo-generatemipmap-formats fbo-generatemipmap-formats.c)
piglit_add_executable (fbo-generatemipmap-scissor fbo-generatemipmap-scissor.c)
diff --git a/tests/fbo/fbo-generatemipmap-cubemap.c b/tests/fbo/fbo-generatemipmap-cubemap.c
new file mode 100644
index 0000000..bcbfc37
--- /dev/null
+++ b/tests/fbo/fbo-generatemipmap-cubemap.c
@@ -0,0 +1,499 @@
+/*
+ * Copyright © 2014 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ * Marek Olšák <maraeo at gmail.com>
+ */
+
+#include "piglit-util-gl-common.h"
+
+#define TEX_SIZE 32
+#define TEX_HALF (TEX_SIZE / 2)
+#define TEX_LEVELS 6
+
+#define DRAW_SIZE 32
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+
+ config.supports_gl_compat_version = 10;
+
+ config.window_width = 680;
+ config.window_height = 620;
+ config.window_visual = PIGLIT_GL_VISUAL_DOUBLE | PIGLIT_GL_VISUAL_RGBA;
+
+PIGLIT_GL_TEST_CONFIG_END
+
+static const char *fs_cube =
+ "uniform samplerCube tex; \n"
+ "void main() \n"
+ "{ \n"
+ " gl_FragColor = textureCube(tex, gl_TexCoord[0].xyz); \n"
+ "} \n";
+
+static const char *fs_cube_array =
+ "#version 130\n"
+ "#extension GL_ARB_texture_cube_map_array : enable\n"
+ "uniform samplerCubeArray tex; \n"
+ "void main() \n"
+ "{ \n"
+ " gl_FragColor = texture(tex, gl_TexCoord[0]); \n"
+ "} \n";
+
+static GLboolean test_array;
+static GLenum target;
+static GLenum num_layers;
+static GLuint prog;
+static GLenum format;
+
+static float colors[][4] = {
+ {0.0, 0.0, 0.0, 1.0},
+ {1.0, 0.0, 0.0, 1.0},
+ {0.0, 1.0, 0.0, 1.0},
+ {1.0, 1.0, 0.0, 1.0},
+ {0.0, 0.0, 1.0, 1.0},
+ {1.0, 0.0, 1.0, 1.0},
+ {0.0, 1.0, 1.0, 1.0},
+};
+#define NUM_COLORS ARRAY_SIZE(colors)
+
+static void
+load_texcube(void)
+{
+ float *p = malloc(TEX_SIZE * TEX_SIZE * num_layers * 4 * sizeof(float));
+ int x,y,z;
+
+ for (z = 0; z < num_layers; z++) {
+ for (y = 0; y < TEX_SIZE; y++) {
+ for (x = 0; x < TEX_SIZE; x++) {
+ int quadrant = y < TEX_SIZE/2 ? (x < TEX_SIZE/2 ? 0 : 1) :
+ (x < TEX_SIZE/2 ? 2 : 3);
+ float *dest = &p[(z*TEX_SIZE*TEX_SIZE + y*TEX_SIZE + x)*4];
+
+ memcpy(dest, colors[(z + quadrant*2) % NUM_COLORS],
+ 4 * sizeof(float));
+ }
+ }
+ }
+
+ if (test_array) {
+ glTexSubImage3D(GL_TEXTURE_CUBE_MAP_ARRAY, 0, 0, 0, 0,
+ TEX_SIZE, TEX_SIZE, num_layers, GL_RGBA, GL_FLOAT, p);
+ }
+ else {
+ glTexSubImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X, 0, 0, 0,
+ TEX_SIZE, TEX_SIZE, GL_RGBA, GL_FLOAT, p);
+ glTexSubImage2D(GL_TEXTURE_CUBE_MAP_NEGATIVE_X, 0, 0, 0,
+ TEX_SIZE, TEX_SIZE, GL_RGBA, GL_FLOAT,
+ p + TEX_SIZE*TEX_SIZE*4);
+ glTexSubImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_Y, 0, 0, 0,
+ TEX_SIZE, TEX_SIZE, GL_RGBA, GL_FLOAT,
+ p + 2*TEX_SIZE*TEX_SIZE*4);
+ glTexSubImage2D(GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, 0, 0, 0,
+ TEX_SIZE, TEX_SIZE, GL_RGBA, GL_FLOAT,
+ p + 3*TEX_SIZE*TEX_SIZE*4);
+ glTexSubImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_Z, 0, 0, 0,
+ TEX_SIZE, TEX_SIZE, GL_RGBA, GL_FLOAT,
+ p + 4*TEX_SIZE*TEX_SIZE*4);
+ glTexSubImage2D(GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, 0, 0, 0,
+ TEX_SIZE, TEX_SIZE, GL_RGBA, GL_FLOAT,
+ p + 5*TEX_SIZE*TEX_SIZE*4);
+ }
+ free(p);
+}
+
+static int
+create_texcube(void)
+{
+ GLuint tex, fb;
+ GLenum status;
+ int layer;
+
+ glGenTextures(1, &tex);
+ glBindTexture(target, tex);
+ glTexParameteri(target, GL_TEXTURE_MIN_FILTER, GL_NEAREST_MIPMAP_NEAREST);
+ glTexParameteri(target, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+ if (test_array)
+ glTexStorage3D(target, TEX_LEVELS, format,
+ TEX_SIZE, TEX_SIZE, num_layers);
+ else
+ glTexStorage2D(target, TEX_LEVELS, format,
+ TEX_SIZE, TEX_SIZE);
+
+ glGenFramebuffers(1, &fb);
+ glBindFramebuffer(GL_FRAMEBUFFER, fb);
+
+ for (layer = 0; layer < num_layers; layer++) {
+ if (test_array)
+ glFramebufferTextureLayer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
+ tex, 0, layer);
+ else
+ glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
+ GL_TEXTURE_CUBE_MAP_POSITIVE_X + layer,
+ tex, 0);
+
+ status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
+ if (status != GL_FRAMEBUFFER_COMPLETE) {
+ load_texcube();
+ goto done;
+ }
+
+ glViewport(0, 0, TEX_SIZE, TEX_SIZE);
+ piglit_ortho_projection(TEX_SIZE, TEX_SIZE, GL_FALSE);
+
+ glColor4fv(colors[(layer + 0) % NUM_COLORS]);
+ piglit_draw_rect(0, 0, TEX_HALF, TEX_HALF);
+
+ glColor4fv(colors[(layer + 2) % NUM_COLORS]);
+ piglit_draw_rect(TEX_HALF, 0, TEX_HALF, TEX_HALF);
+
+ glColor4fv(colors[(layer + 4) % NUM_COLORS]);
+ piglit_draw_rect(0, TEX_HALF, TEX_HALF, TEX_HALF);
+
+ glColor4fv(colors[(layer + 6) % NUM_COLORS]);
+ piglit_draw_rect(TEX_HALF, TEX_HALF, TEX_HALF, TEX_HALF);
+ }
+
+done:
+ glGenerateMipmap(target);
+ glDeleteFramebuffers(1, &fb);
+ return tex;
+}
+
+#define FACE(x) (GL_TEXTURE_CUBE_MAP_##x - GL_TEXTURE_CUBE_MAP_POSITIVE_X)
+
+static void
+piglit_draw_rect_face(float x, float y, float w, float h, int face, int cube_layer)
+{
+ float verts[4][4];
+ float tex[4][4];
+ float sign = face % 2 ? -1 : 1;
+
+ verts[0][0] = x;
+ verts[0][1] = y;
+ verts[0][2] = 0.0;
+ verts[0][3] = 1.0;
+ verts[1][0] = x + w;
+ verts[1][1] = y;
+ verts[1][2] = 0.0;
+ verts[1][3] = 1.0;
+ verts[2][0] = x + w;
+ verts[2][1] = y + h;
+ verts[2][2] = 0.0;
+ verts[2][3] = 1.0;
+ verts[3][0] = x;
+ verts[3][1] = y + h;
+ verts[3][2] = 0.0;
+ verts[3][3] = 1.0;
+
+ switch (face) {
+ case FACE(POSITIVE_X):
+ case FACE(NEGATIVE_X):
+ tex[0][0] = sign;
+ tex[1][0] = sign;
+ tex[2][0] = sign;
+ tex[3][0] = sign;
+
+ tex[3][1] = -1 * sign;
+ tex[3][2] = 1;
+
+ tex[0][1] = -1 * sign;
+ tex[0][2] = -1;
+
+ tex[1][1] = 1 * sign;
+ tex[1][2] = -1;
+
+ tex[2][1] = 1 * sign;
+ tex[2][2] = 1;
+ break;
+
+ case FACE(POSITIVE_Y):
+ case FACE(NEGATIVE_Y):
+ tex[0][1] = sign;
+ tex[1][1] = sign;
+ tex[2][1] = sign;
+ tex[3][1] = sign;
+
+ tex[0][0] = 1 * sign;
+ tex[0][2] = -1;
+
+ tex[1][0] = -1 * sign;
+ tex[1][2] = -1;
+
+ tex[2][0] = -1 * sign;
+ tex[2][2] = 1;
+
+ tex[3][0] = 1 * sign;
+ tex[3][2] = 1;
+ break;
+
+ case FACE(POSITIVE_Z):
+ case FACE(NEGATIVE_Z):
+ tex[0][2] = sign;
+ tex[1][2] = sign;
+ tex[2][2] = sign;
+ tex[3][2] = sign;
+
+ tex[0][0] = 1;
+ tex[0][1] = 1 * sign;
+
+ tex[1][0] = -1;
+ tex[1][1] = 1 * sign;
+
+ tex[2][0] = -1;
+ tex[2][1] = -1 * sign;
+
+ tex[3][0] = 1;
+ tex[3][1] = -1 * sign;
+ break;
+
+ default:
+ assert(0);
+ }
+
+ tex[0][3] = cube_layer;
+ tex[1][3] = cube_layer;
+ tex[2][3] = cube_layer;
+ tex[3][3] = cube_layer;
+
+ glVertexPointer(4, GL_FLOAT, 0, verts);
+ glTexCoordPointer(4, GL_FLOAT, 0, tex);
+ glEnableClientState(GL_VERTEX_ARRAY);
+ glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+
+ glDrawArrays(GL_QUADS, 0, 4);
+
+ glDisableClientState(GL_VERTEX_ARRAY);
+ glDisableClientState(GL_TEXTURE_COORD_ARRAY);
+}
+
+static void
+draw_face(int face, int cube_layer, int x, int y)
+{
+ int loc;
+
+ glUseProgram(prog);
+ loc = glGetUniformLocation(prog, "tex");
+ glUniform1i(loc, 0); /* texture unit p */
+
+ glViewport(0, 0, piglit_width, piglit_height);
+ piglit_ortho_projection(piglit_width, piglit_height, GL_FALSE);
+
+ glBindFramebuffer(GL_FRAMEBUFFER, piglit_winsys_fbo);
+
+ piglit_draw_rect_face(x, y, DRAW_SIZE, DRAW_SIZE, face, cube_layer);
+ glUseProgram(0);
+}
+
+static void
+draw_cube(int x, int y, int level, int cube_layer)
+{
+ glTexParameteri(target, GL_TEXTURE_MIN_LOD, level);
+ glTexParameteri(target, GL_TEXTURE_MAX_LOD, level);
+
+ draw_face(FACE(POSITIVE_X), cube_layer, x, y+DRAW_SIZE);
+ draw_face(FACE(POSITIVE_Y), cube_layer, x+DRAW_SIZE, y+DRAW_SIZE);
+ draw_face(FACE(NEGATIVE_X), cube_layer, x+DRAW_SIZE*2, y+DRAW_SIZE);
+ draw_face(FACE(NEGATIVE_Y), cube_layer, x+DRAW_SIZE*3, y+DRAW_SIZE);
+ draw_face(FACE(POSITIVE_Z), cube_layer, x+DRAW_SIZE, y+DRAW_SIZE*2);
+ draw_face(FACE(NEGATIVE_Z), cube_layer, x+DRAW_SIZE, y);
+}
+
+static void
+draw_mipmap_tree(int x, int y)
+{
+ int i,j;
+
+ for (i = 0; i < TEX_LEVELS; i++) {
+ int cubes = num_layers / 6;
+
+ for (j = 0; j < cubes; j++) {
+ draw_cube(x + j*(DRAW_SIZE * 4 + 5),
+ y + i*(DRAW_SIZE * 3 + 5), i, j);
+ }
+ }
+}
+
+static bool
+test_face(int face, int level, int cube, float *observed)
+{
+ int size = TEX_SIZE >> level;
+ int layer = cube*6 + face;
+ int x,y,i,c;
+ bool pass = true;
+ float *e;
+
+ e = malloc(size * size * 4 * sizeof(float));
+
+ if (size == 1) {
+ memset(e, 0, 4 * sizeof(float));
+
+ for (i = 0; i < 4; i++)
+ for (c = 0; c < 4; c++)
+ e[c] += colors[(layer + i*2) % NUM_COLORS][c] * 0.25;
+ }
+ else {
+ for (y = 0; y < size; y++) {
+ for (x = 0; x < size; x++) {
+ int quadrant = y < size/2 ? (x < size/2 ? 0 : 1) :
+ (x < size/2 ? 2 : 3);
+ float *color = colors[(layer + quadrant*2) % NUM_COLORS];
+
+ memcpy(&e[(y*size+x)*4], color, sizeof(float) * 4);
+ }
+ }
+ }
+
+
+ for (y = 0; y < size; y++) {
+ for (x = 0; x < size; x++) {
+ float *probe = &observed[(y*size+x)*4];
+ float *expected = &e[(y*size+x)*4];
+
+ for (i = 0; i < 4; ++i) {
+ if (fabs(probe[i] - expected[i]) >= piglit_tolerance[i]) {
+ printf("Probe color at (%i,%i)\n", x, y);
+ printf(" Expected: %f %f %f %f\n",
+ expected[0], expected[1], expected[2], expected[3]);
+ printf(" Observed: %f %f %f %f\n",
+ probe[0], probe[1], probe[2], probe[3]);
+ printf(" when testing face %i, level %i, cube %i\n",
+ face, level, cube);
+ pass = false;
+ goto done;
+ }
+ }
+ }
+ }
+
+done:
+ free(e);
+ return pass;
+}
+
+static bool
+test_mipmap_tree(void)
+{
+ bool pass = true;
+ int layer, level;
+
+ for (level = 0; level < TEX_LEVELS; level++) {
+ int size = TEX_SIZE >> level;
+ float *observed;
+
+ /* With a compressed texture, skip checking the second and
+ * third last levels, because one DXTC block cannot contain
+ * more than 2 colors.
+ *
+ * However, always test the last level, which should only
+ * contain one color, which is the average of all 4.
+ */
+ if (format == GL_COMPRESSED_RGB_S3TC_DXT1_EXT &&
+ level >= TEX_LEVELS-3 && level <= TEX_LEVELS-2)
+ continue;
+
+ if (test_array) {
+ observed = malloc(num_layers * size * size * 4 * sizeof(float));
+ glGetTexImage(target, level, GL_RGBA, GL_FLOAT, observed);
+
+ for (layer = 0; layer < num_layers; layer++) {
+ pass = pass && test_face(layer % 6, level, layer / 6,
+ observed + layer * size * size * 4);
+ }
+
+ free(observed);
+ }
+ else {
+ for (layer = 0; layer < num_layers; layer++) {
+ observed = malloc(size * size * 4 * sizeof(float));
+ glGetTexImage(GL_TEXTURE_CUBE_MAP_POSITIVE_X + layer,
+ level, GL_RGBA, GL_FLOAT, observed);
+
+ pass = pass && test_face(layer, level, 0, observed);
+
+ free(observed);
+ }
+ }
+ }
+
+ return pass;
+}
+
+enum piglit_result
+piglit_display(void)
+{
+ GLboolean pass = GL_TRUE;
+ GLuint tex;
+
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ tex = create_texcube();
+
+ draw_mipmap_tree(5, 5);
+
+ pass = test_mipmap_tree();
+
+ glDeleteTextures(1, &tex);
+ piglit_present_results();
+ return pass ? PIGLIT_PASS : PIGLIT_FAIL;
+}
+
+void piglit_init(int argc, char **argv)
+{
+ int i;
+
+ piglit_require_extension("GL_ARB_framebuffer_object");
+ piglit_require_extension("GL_ARB_texture_storage");
+ piglit_require_GLSL_version(120);
+
+ format = GL_RGBA8;
+ target = GL_TEXTURE_CUBE_MAP;
+ num_layers = 6;
+
+ for (i = 1; i < argc; i++) {
+ if (strcmp(argv[i], "array") == 0) {
+ piglit_require_GLSL_version(130);
+ piglit_require_extension("GL_ARB_texture_cube_map_array");
+ test_array = GL_TRUE;
+ target = GL_TEXTURE_CUBE_MAP_ARRAY;
+ num_layers = 6 * 5;
+ }
+ else if (strcmp(argv[i], "RGB9_E5") == 0) {
+ /* Test a non-renderable format. */
+ piglit_require_extension("GL_EXT_texture_shared_exponent");
+ format = GL_RGB9_E5;
+ }
+ else if (strcmp(argv[i], "S3TC_DXT1") == 0) {
+ /* Test a compressed format. */
+ piglit_require_extension("GL_EXT_texture_compression_s3tc");
+ format = GL_COMPRESSED_RGB_S3TC_DXT1_EXT;
+ piglit_set_tolerance_for_bits(5, 6, 5, 8);
+ }
+ else {
+ assert(0);
+ }
+ }
+
+ prog = piglit_build_simple_program(NULL, test_array ? fs_cube_array :
+ fs_cube);
+
+ glClearColor(0.25, 0.25, 0.25, 0.25);
+}
--
1.8.3.2
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