[Piglit] [PATCH] arb_get_texture_sub_image: new tests for GL_ARB_get_texture_sub_image
Brian Paul
brianp at vmware.com
Wed Jul 15 16:33:19 PDT 2015
errors.c - test error detection
get.c - test glGetTextureSubImage
getcompressed.c - test glGetCompressedTextureSubImage
cubemap.c - extra tests for getting cubemap images
v2:
move guts of the tests from piglit_display() to piglit_init(),
test cube map arrays.
test a few more error cases.
---
tests/all.py | 7 +
tests/spec/CMakeLists.txt | 1 +
.../arb_get_texture_sub_image/CMakeLists.gl.txt | 17 +
.../spec/arb_get_texture_sub_image/CMakeLists.txt | 1 +
tests/spec/arb_get_texture_sub_image/cubemap.c | 203 ++++++++++
tests/spec/arb_get_texture_sub_image/errors.c | 303 ++++++++++++++
tests/spec/arb_get_texture_sub_image/get.c | 450 +++++++++++++++++++++
.../spec/arb_get_texture_sub_image/getcompressed.c | 340 ++++++++++++++++
8 files changed, 1322 insertions(+)
create mode 100644 tests/spec/arb_get_texture_sub_image/CMakeLists.gl.txt
create mode 100644 tests/spec/arb_get_texture_sub_image/CMakeLists.txt
create mode 100644 tests/spec/arb_get_texture_sub_image/cubemap.c
create mode 100644 tests/spec/arb_get_texture_sub_image/errors.c
create mode 100644 tests/spec/arb_get_texture_sub_image/get.c
create mode 100644 tests/spec/arb_get_texture_sub_image/getcompressed.c
diff --git a/tests/all.py b/tests/all.py
index b85d2a2..63be7b8 100644
--- a/tests/all.py
+++ b/tests/all.py
@@ -2501,6 +2501,13 @@ with profile.group_manager(
'GL_DEPTH32F_STENCIL8', 0)
with profile.group_manager(
+ PiglitGLTest, grouptools.join('spec', 'arb_get_texture_sub_image')) as g:
+ g(['arb_get_texture_sub_image-cubemap'])
+ g(['arb_get_texture_sub_image-errors'])
+ g(['arb_get_texture_sub_image-get'])
+ g(['arb_get_texture_sub_image-getcompressed'])
+
+with profile.group_manager(
PiglitGLTest,
grouptools.join('spec', 'arb_texture_env_crossbar')) as g:
g(['crossbar'], run_concurrent=False)
diff --git a/tests/spec/CMakeLists.txt b/tests/spec/CMakeLists.txt
index 65cab37..0ed7aa3 100644
--- a/tests/spec/CMakeLists.txt
+++ b/tests/spec/CMakeLists.txt
@@ -23,6 +23,7 @@ add_subdirectory (arb_framebuffer_object)
add_subdirectory (arb_framebuffer_srgb)
add_subdirectory (arb_geometry_shader4)
add_subdirectory (arb_get_program_binary)
+add_subdirectory (arb_get_texture_sub_image)
add_subdirectory (arb_gpu_shader5)
add_subdirectory (arb_gpu_shader_fp64)
add_subdirectory (arb_instanced_arrays)
diff --git a/tests/spec/arb_get_texture_sub_image/CMakeLists.gl.txt b/tests/spec/arb_get_texture_sub_image/CMakeLists.gl.txt
new file mode 100644
index 0000000..2194f8c
--- /dev/null
+++ b/tests/spec/arb_get_texture_sub_image/CMakeLists.gl.txt
@@ -0,0 +1,17 @@
+include_directories(
+ ${GLEXT_INCLUDE_DIR}
+ ${OPENGL_INCLUDE_PATH}
+)
+
+link_libraries (
+ piglitutil_${piglit_target_api}
+ ${OPENGL_gl_LIBRARY}
+ ${OPENGL_glu_LIBRARY}
+)
+
+piglit_add_executable (arb_get_texture_sub_image-cubemap cubemap.c)
+piglit_add_executable (arb_get_texture_sub_image-errors errors.c)
+piglit_add_executable (arb_get_texture_sub_image-get get.c)
+piglit_add_executable (arb_get_texture_sub_image-getcompressed getcompressed.c)
+
+# vim: ft=cmake:
diff --git a/tests/spec/arb_get_texture_sub_image/CMakeLists.txt b/tests/spec/arb_get_texture_sub_image/CMakeLists.txt
new file mode 100644
index 0000000..144a306
--- /dev/null
+++ b/tests/spec/arb_get_texture_sub_image/CMakeLists.txt
@@ -0,0 +1 @@
+piglit_include_target_api()
diff --git a/tests/spec/arb_get_texture_sub_image/cubemap.c b/tests/spec/arb_get_texture_sub_image/cubemap.c
new file mode 100644
index 0000000..acbcaa4
--- /dev/null
+++ b/tests/spec/arb_get_texture_sub_image/cubemap.c
@@ -0,0 +1,203 @@
+/*
+ * Copyright 2015 VMware, 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.
+ */
+
+/**
+ * Test glGetTextureSubImage with cube maps.
+ */
+
+#include "piglit-util-gl.h"
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+ config.supports_gl_compat_version = 20;
+ config.window_visual = PIGLIT_GL_VISUAL_RGBA;
+PIGLIT_GL_TEST_CONFIG_END
+
+
+static void
+memset_series(unsigned *buffer, unsigned baseValue, unsigned size)
+{
+ unsigned i;
+ for (i = 0; i < size; i++)
+ buffer[i] = baseValue + i;
+}
+
+
+static bool
+compare_series(const unsigned *buffer, unsigned baseValue, unsigned size)
+{
+ unsigned i;
+ for (i = 0; i < size; i++) {
+ if (buffer[i] != baseValue + i) {
+ printf("Expected 0x%08x found 0x%08x\n",
+ baseValue + i, buffer[i]);
+ return false;
+ }
+
+ }
+ return true;
+}
+
+
+static bool
+test_cubemap(void)
+{
+ GLuint tex;
+ GLuint buffer[8*8];
+ GLuint results[6*8*8];
+ int level, face, imgStart;
+
+ piglit_require_extension("GL_ARB_get_texture_sub_image");
+
+ /* setup 8x8 mipmapped cube texture */
+ glGenTextures(1, &tex);
+ glBindTexture(GL_TEXTURE_CUBE_MAP, tex);
+ glTexStorage2D(GL_TEXTURE_CUBE_MAP, 4, GL_RGBA8, 8, 8);
+
+ for (level = 0; level < 4; level++) {
+ for (face = 0; face < 6; face++) {
+ memset_series(buffer, face*10000+level*100,
+ sizeof(buffer)/4);
+ glTexSubImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + face,
+ level, 0, 0, 8 >> level, 8 >> level,
+ GL_RGBA, GL_UNSIGNED_INT_8_8_8_8,
+ buffer);
+ }
+ }
+
+ /* test getting all six faces */
+ for (level = 0; level < 4; level++) {
+ /* get all six faces */
+ memset(results, 0, sizeof(results));
+ glGetTextureSubImage(tex, level,
+ 0, 0, 0, /* offset */
+ 8 >> level, 8 >> level, 6, /* size */
+ GL_RGBA, GL_UNSIGNED_INT_8_8_8_8,
+ sizeof(results), results);
+
+ /* check results */
+ imgStart = 0;
+ for (face = 0; face < 6; face++) {
+ GLuint expected = face * 10000 + level * 100;
+ int numTexels = (8 >> level) * (8 >> level);
+ if (!compare_series(results + imgStart, expected,
+ numTexels)) {
+ printf("Incorrect cubemap texel at "
+ "level %u, face %u\n",
+ level, face);
+ return false;
+ }
+ imgStart += numTexels;
+ }
+ }
+
+ /* Test getting face sub images (skip last 1x1 mipmap level)
+ * using four glGetTextureSubImage calls, one per quadrant.
+ * Note that each call retrieves the quadrant for all six faces
+ * at once.
+ */
+ for (level = 0; level < 3; level++) {
+ const int w = 4 >> level, h = 4 >> level;
+ int x, y;
+
+ memset(results, 0, sizeof(results));
+
+ glPixelStorei(GL_PACK_ROW_LENGTH, w * 2);
+ glPixelStorei(GL_PACK_IMAGE_HEIGHT, h * 2);
+
+ /* lower-left */
+ x = y = 0;
+ glPixelStorei(GL_PACK_SKIP_PIXELS, x);
+ glPixelStorei(GL_PACK_SKIP_ROWS, y);
+ glGetTextureSubImage(tex, level,
+ x, y, 0,
+ w, h, 6,
+ GL_RGBA, GL_UNSIGNED_INT_8_8_8_8,
+ sizeof(results), results);
+
+ /* lower-right */
+ x = w;
+ y = 0;
+ glPixelStorei(GL_PACK_SKIP_PIXELS, x);
+ glPixelStorei(GL_PACK_SKIP_ROWS, y);
+ glGetTextureSubImage(tex, level,
+ x, y, 0,
+ w, h, 6,
+ GL_RGBA, GL_UNSIGNED_INT_8_8_8_8,
+ sizeof(results), results);
+
+ /* upper-left */
+ x = 0;
+ y = h;
+ glPixelStorei(GL_PACK_SKIP_PIXELS, x);
+ glPixelStorei(GL_PACK_SKIP_ROWS, y);
+ glGetTextureSubImage(tex, level,
+ x, y, 0,
+ w, h, 6,
+ GL_RGBA, GL_UNSIGNED_INT_8_8_8_8,
+ sizeof(results), results);
+
+ /* upper-right */
+ x = w;
+ y = h;
+ glPixelStorei(GL_PACK_SKIP_PIXELS, x);
+ glPixelStorei(GL_PACK_SKIP_ROWS, y);
+ glGetTextureSubImage(tex, level,
+ x, y, 0,
+ w, h, 6,
+ GL_RGBA, GL_UNSIGNED_INT_8_8_8_8,
+ sizeof(results), results);
+
+ /* check results */
+ imgStart = 0;
+ for (face = 0; face < 6; face++) {
+ GLuint expected = face * 10000 + level * 100;
+ int numTexels = (8 >> level) * (8 >> level);
+ if (!compare_series(results + imgStart, expected,
+ numTexels)) {
+ printf("Incorrect cubemap texel at "
+ "level %u, face %u\n",
+ level, face);
+ return false;
+ }
+ imgStart += numTexels;
+ }
+ }
+
+ return true;
+}
+
+
+void
+piglit_init(int argc, char **argv)
+{
+ bool pass = test_cubemap();
+ piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
+}
+
+
+enum piglit_result
+piglit_display(void)
+{
+ /* never called */
+ return PIGLIT_PASS;
+}
diff --git a/tests/spec/arb_get_texture_sub_image/errors.c b/tests/spec/arb_get_texture_sub_image/errors.c
new file mode 100644
index 0000000..e5eb351
--- /dev/null
+++ b/tests/spec/arb_get_texture_sub_image/errors.c
@@ -0,0 +1,303 @@
+/*
+ * Copyright 2015 VMware, 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.
+ */
+
+/**
+ * Test glGetTextureSubImage and glGetCompressedTextureSubImage error checking.
+ */
+
+#include "piglit-util-gl.h"
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+ config.supports_gl_compat_version = 20;
+ config.window_visual = PIGLIT_GL_VISUAL_RGBA;
+PIGLIT_GL_TEST_CONFIG_END
+
+
+static bool
+test_texture_id(void)
+{
+ GLubyte buffer[8*8*4];
+ GLuint tex = 42;
+ bool pass = true;
+
+ /* Test get with bad texture ID */
+ glGetTextureSubImage(tex, 0,
+ 0, 0, 0, /* offset */
+ 8, 8, 1, /* size */
+ GL_RGBA, GL_UNSIGNED_BYTE,
+ sizeof(buffer), buffer);
+ if (!piglit_check_gl_error(GL_INVALID_OPERATION))
+ pass = false;
+
+ /* Test compressed get with bad texture ID */
+ glGetCompressedTextureSubImage(tex, 0,
+ 0, 0, 0, /* offset */
+ 8, 8, 1, /* size */
+ sizeof(buffer), buffer);
+ if (!piglit_check_gl_error(GL_INVALID_OPERATION))
+ pass = false;
+
+ /* Test get with undefined texture */
+ glGenTextures(1, &tex);
+ glGetTextureSubImage(tex, 0,
+ 0, 0, 0, /* offset */
+ 8, 8, 1, /* size */
+ GL_RGBA, GL_UNSIGNED_BYTE,
+ sizeof(buffer), buffer);
+ if (!piglit_check_gl_error(GL_INVALID_OPERATION))
+ pass = false;
+
+ /* Test compressed get with undefined texture */
+ glGetCompressedTextureSubImage(tex, 0,
+ 0, 0, 0, /* offset */
+ 8, 8, 1, /* size */
+ sizeof(buffer), buffer);
+ if (!piglit_check_gl_error(GL_INVALID_OPERATION))
+ pass = false;
+
+ glDeleteTextures(1, &tex);
+
+ return pass;
+}
+
+
+static bool
+test_buffer_size(void)
+{
+ GLubyte buffer[8*8*4];
+ GLubyte quadrant_buffer[4*4*4];
+ GLuint tex = 42;
+ bool pass = true;
+
+ /* setup 8x8 texture */
+ glGenTextures(1, &tex);
+ glBindTexture(GL_TEXTURE_2D, tex);
+ glTexStorage2D(GL_TEXTURE_2D, 4, GL_RGBA8, 8, 8);
+
+ /* Test too small of dest buffer */
+ glGetTextureSubImage(tex, 0,
+ 0, 0, 0, /* offset */
+ 8, 8, 1, /* size */
+ GL_RGBA, GL_UNSIGNED_BYTE,
+ sizeof(buffer) - 1, buffer);
+ if (!piglit_check_gl_error(GL_INVALID_OPERATION))
+ pass = false;
+
+ /* Test with pixel unpack params, sufficient buffer size */
+ glPixelStorei(GL_PACK_SKIP_ROWS, 4);
+ glPixelStorei(GL_PACK_SKIP_PIXELS, 4);
+ glPixelStorei(GL_PACK_ROW_LENGTH, 8);
+ glGetTextureSubImage(tex, 0,
+ 4, 4, 0, /* offset */
+ 4, 4, 1, /* size */
+ GL_RGBA, GL_UNSIGNED_BYTE,
+ sizeof(buffer), buffer);
+ if (!piglit_check_gl_error(GL_NO_ERROR))
+ pass = false;
+
+ /* Test with pixel unpack params, insufficient buffer size */
+ glGetTextureSubImage(tex, 0,
+ 4, 4, 0, /* offset */
+ 4, 4, 1, /* size */
+ GL_RGBA, GL_UNSIGNED_BYTE,
+ sizeof(buffer) - 1, buffer);
+ if (!piglit_check_gl_error(GL_INVALID_OPERATION))
+ pass = false;
+
+ /* Test getting a quadrant, sufficent buffer size */
+ glPixelStorei(GL_PACK_SKIP_ROWS, 0);
+ glPixelStorei(GL_PACK_SKIP_PIXELS, 0);
+ glPixelStorei(GL_PACK_ROW_LENGTH, 0);
+ glGetTextureSubImage(tex, 0,
+ 4, 4, 0, /* offset */
+ 4, 4, 1, /* size */
+ GL_RGBA, GL_UNSIGNED_BYTE,
+ sizeof(quadrant_buffer), quadrant_buffer);
+ if (!piglit_check_gl_error(GL_NO_ERROR))
+ pass = false;
+
+ /* Test getting a quadrant, insufficent buffer size */
+ glPixelStorei(GL_PACK_SKIP_ROWS, 0);
+ glPixelStorei(GL_PACK_SKIP_PIXELS, 0);
+ glPixelStorei(GL_PACK_ROW_LENGTH, 0);
+ glGetTextureSubImage(tex, 0,
+ 4, 4, 0, /* offset */
+ 4, 4, 1, /* size */
+ GL_RGBA, GL_UNSIGNED_BYTE,
+ sizeof(quadrant_buffer) - 1, quadrant_buffer);
+ if (!piglit_check_gl_error(GL_INVALID_OPERATION))
+ pass = false;
+
+ glDeleteTextures(1, &tex);
+
+ return pass;
+}
+
+
+static bool
+test_invalid_values(void)
+{
+ GLubyte buffer[8*8*4];
+ GLuint tex = 42;
+ bool pass = true;
+
+ /* setup 8x8 texture */
+ glGenTextures(1, &tex);
+ glBindTexture(GL_TEXTURE_2D, tex);
+ glTexStorage2D(GL_TEXTURE_2D, 4, GL_RGBA8, 8, 8);
+
+ /* Test bad format/type */
+ glGetTextureSubImage(tex, 0,
+ 0, 0, 0, /* offset */
+ 8, 8, 1, /* size */
+ GL_RGBA, GL_DEPTH_FUNC, /* bad enum */
+ sizeof(buffer), buffer);
+ if (!piglit_check_gl_error(GL_INVALID_ENUM))
+ pass = false;
+
+ /* Test getting invalid negative level */
+ glGetTextureSubImage(tex, -1,
+ 0, 0, 0, /* offset */
+ 1, 1, 1, /* size */
+ GL_RGBA, GL_UNSIGNED_BYTE,
+ sizeof(buffer), buffer);
+ if (!piglit_check_gl_error(GL_INVALID_VALUE))
+ pass = false;
+
+ /* Test getting invalid large level */
+ glGetTextureSubImage(tex, 99,
+ 0, 0, 0, /* offset */
+ 1, 1, 1, /* size */
+ GL_RGBA, GL_UNSIGNED_BYTE,
+ sizeof(buffer), buffer);
+ if (!piglit_check_gl_error(GL_INVALID_VALUE))
+ pass = false;
+
+ /* Test non-existant level */
+ glGetTextureSubImage(tex, 4,
+ 0, 0, 0, /* offset */
+ 8, 8, 1, /* size */
+ GL_RGBA, GL_FLOAT, /* bad enum */
+ sizeof(buffer), buffer);
+ if (!piglit_check_gl_error(GL_INVALID_OPERATION))
+ pass = false;
+
+ /* Test getting invalid offset */
+ glGetTextureSubImage(tex, 0,
+ -1, 0, 0, /* offset */
+ 1, 1, 1, /* size */
+ GL_RGBA, GL_UNSIGNED_BYTE,
+ sizeof(buffer), buffer);
+ if (!piglit_check_gl_error(GL_INVALID_VALUE))
+ pass = false;
+
+ /* Test getting invalid size */
+ glGetTextureSubImage(tex, 0,
+ 0, 0, 0, /* offset */
+ -1, 1, 1, /* size */
+ GL_RGBA, GL_UNSIGNED_BYTE,
+ sizeof(buffer), buffer);
+ if (!piglit_check_gl_error(GL_INVALID_VALUE))
+ pass = false;
+
+ /* Test getting zero size - not an error */
+ glGetTextureSubImage(tex, 0,
+ 0, 0, 0, /* offset */
+ 0, 1, 1, /* size */
+ GL_RGBA, GL_UNSIGNED_BYTE,
+ sizeof(buffer), buffer);
+ if (!piglit_check_gl_error(GL_NO_ERROR))
+ pass = false;
+
+ glDeleteTextures(1, &tex);
+
+ return pass;
+}
+
+
+static bool
+test_cubemap_faces(void)
+{
+ GLubyte results[8*8*6*4];
+ GLuint tex = 42;
+ bool pass = true;
+ int face;
+
+ glGenTextures(1, &tex);
+ glBindTexture(GL_TEXTURE_CUBE_MAP, tex);
+
+ /* create 5 cube faces, purposely omitting 6th face */
+ for (face = 0; face < 5; face++) {
+ glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + face,
+ 0, GL_RGBA, 8, 8, 0, GL_RGBA, GL_FLOAT, NULL);
+ }
+
+ /* try to get all six cube faces, should fail */
+ glGetTextureSubImage(tex, 0,
+ 0, 0, 0,
+ 8, 8, 6,
+ GL_RGBA, GL_UNSIGNED_BYTE,
+ sizeof(results), results);
+ if (!piglit_check_gl_error(GL_INVALID_OPERATION))
+ pass = false;
+
+ /* try to get five cube faces, should pass */
+ glGetTextureSubImage(tex, 0,
+ 0, 0, 0,
+ 8, 8, 5,
+ GL_RGBA, GL_UNSIGNED_BYTE,
+ sizeof(results), results);
+ if (!piglit_check_gl_error(GL_NO_ERROR))
+ pass = false;
+
+ glDeleteTextures(1, &tex);
+
+ return pass;
+}
+
+
+void
+piglit_init(int argc, char **argv)
+{
+ bool pass;
+
+ piglit_require_extension("GL_ARB_get_texture_sub_image");
+ piglit_require_extension("GL_ARB_texture_storage");
+
+ pass = test_texture_id();
+ pass = test_buffer_size() && pass;
+ pass = test_invalid_values() && pass;
+ pass = test_cubemap_faces() && pass;
+
+ piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
+}
+
+
+enum piglit_result
+piglit_display(void)
+{
+ /* never called */
+ return PIGLIT_PASS;
+}
+
+
diff --git a/tests/spec/arb_get_texture_sub_image/get.c b/tests/spec/arb_get_texture_sub_image/get.c
new file mode 100644
index 0000000..d76ad89
--- /dev/null
+++ b/tests/spec/arb_get_texture_sub_image/get.c
@@ -0,0 +1,450 @@
+/*
+ * Copyright 2015 VMware, 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.
+ */
+
+/**
+ * Test glGetTextureSubImage() with most texture types.
+ */
+
+#include "piglit-util-gl.h"
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+ config.supports_gl_compat_version = 20;
+ config.window_visual = PIGLIT_GL_VISUAL_RGBA |
+ PIGLIT_GL_VISUAL_DOUBLE;
+PIGLIT_GL_TEST_CONFIG_END
+
+
+/* XXX this could potentially be a piglit utility function */
+static bool
+minify(GLenum target, int level, int width, int height, int depth,
+ int *mip_width, int *mip_height, int *mip_depth)
+{
+ switch (target) {
+ case GL_TEXTURE_1D:
+ assert(height == 1);
+ assert(depth == 1);
+ if (width >> level == 0)
+ return false;
+ *mip_width = width >> level;
+ *mip_height = 1;
+ *mip_depth = 1;
+ return true;
+ case GL_TEXTURE_1D_ARRAY:
+ assert(depth == 1);
+ if (width >> level == 0)
+ return false;
+ *mip_width = width >> level;
+ *mip_height = height;
+ *mip_depth = 1;
+ return true;
+ case GL_TEXTURE_2D:
+ assert(depth == 1);
+ if (width >> level == 0 && height >> level == 0)
+ return false;
+ *mip_width = MAX2(1, width >> level);
+ *mip_height = MAX2(1, height >> level);
+ *mip_depth = 1;
+ return true;
+ case GL_TEXTURE_2D_ARRAY:
+ case GL_TEXTURE_CUBE_MAP:
+ case GL_TEXTURE_CUBE_MAP_ARRAY:
+ if (width >> level == 0 && height >> level == 0)
+ return false;
+ *mip_width = MAX2(1, width >> level);
+ *mip_height = MAX2(1, height >> level);
+ *mip_depth = depth;
+ return true;
+ case GL_TEXTURE_3D:
+ if (width >> level == 0 &&
+ height >> level == 0 &&
+ depth >> level == 0)
+ return false;
+ *mip_width = MAX2(1, width >> level);
+ *mip_height = MAX2(1, height >> level);
+ *mip_depth = MAX2(1, depth >> level);
+ return true;
+ case GL_TEXTURE_RECTANGLE:
+ assert(depth == 1);
+ if (level > 0)
+ return false;
+ *mip_width = width;
+ *mip_height = height;
+ *mip_depth = 1;
+ return true;
+ default:
+ return false;
+ }
+}
+
+
+static bool
+test_getsubimage(GLenum target,
+ GLsizei width, GLsizei height, GLsizei depth,
+ GLenum intFormat)
+{
+ const GLint bufSize = width * height * depth * 4 * sizeof(GLubyte);
+ GLubyte *texData = malloc(bufSize);
+ GLubyte *refData = malloc(bufSize);
+ GLubyte *testData = malloc(bufSize);
+ GLuint tex;
+ int i, level, bytes;
+ bool pass = true;
+ GLsizei mip_width, mip_height, mip_depth;
+
+ printf("Testing %s %s %d x %d x %d\n",
+ piglit_get_gl_enum_name(target),
+ piglit_get_gl_enum_name(intFormat),
+ width, height, depth);
+
+ /* initial texture data */
+ for (i = 0; i < width * height * depth * 4; i++) {
+ texData[i] = i & 0xff;
+ }
+
+ glGenTextures(1, &tex);
+ glBindTexture(target, tex);
+
+ mip_width = width;
+ mip_height = height;
+ mip_depth = depth;
+
+ /* make mipmapped texture */
+ for (level = 0; ; level++) {
+ if (!minify(target, level, width, height, depth,
+ &mip_width, &mip_height, &mip_depth)) {
+ break;
+ }
+
+ switch (target) {
+ case GL_TEXTURE_1D:
+ glTexImage1D(GL_TEXTURE_1D, level, intFormat,
+ mip_width, 0,
+ GL_RGBA, GL_UNSIGNED_BYTE, texData);
+ break;
+ case GL_TEXTURE_2D:
+ case GL_TEXTURE_RECTANGLE:
+ case GL_TEXTURE_1D_ARRAY:
+ glTexImage2D(target, level, intFormat,
+ mip_width, mip_height, 0,
+ GL_RGBA, GL_UNSIGNED_BYTE, texData);
+ break;
+ case GL_TEXTURE_3D:
+ case GL_TEXTURE_2D_ARRAY:
+ case GL_TEXTURE_CUBE_MAP_ARRAY:
+ glTexImage3D(target, level, intFormat,
+ mip_width, mip_height, mip_depth, 0,
+ GL_RGBA, GL_UNSIGNED_BYTE, texData);
+ break;
+ case GL_TEXTURE_CUBE_MAP:
+ /* only set +Y face */
+ glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_Y,
+ level, intFormat,
+ mip_width, mip_height, 0,
+ GL_RGBA, GL_UNSIGNED_BYTE,
+ texData);
+ break;
+ }
+ }
+
+ /* compare glGetTexImage() vs. glGetTextureSubImage() */
+ glPixelStorei(GL_PACK_ALIGNMENT, 1);
+
+ mip_width = width;
+ mip_height = height;
+ mip_depth = depth;
+
+ for (level = 0; ; level++) {
+ GLint x0, y0, z0, x1, y1, z1, w0, h0, w1, h1, d0, d1;
+
+ if (!minify(target, level, width, height, depth,
+ &mip_width, &mip_height, &mip_depth)) {
+ break;
+ }
+
+ /* compute pos/size of sub-regions */
+ x0 = 0;
+ y0 = 0;
+ z0 = 0;
+ x1 = MAX2(1, mip_width / 3);
+ y1 = MAX2(1, mip_height / 3);
+ z1 = MAX2(1, mip_depth / 3);
+ if (intFormat == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT) {
+ /* x1, y1 must be a multipe of 4 */
+ x1 &= ~0x3;
+ y1 &= ~0x3;
+ }
+
+ /* Note that any of these widths, heights, depths can be zero
+ * but that's legal and should work fine.
+ */
+ w0 = x1 - x0;
+ w1 = mip_width - x1;
+ h0 = y1 - y0;
+ h1 = mip_height - y1;
+ d0 = z1 - z0;
+ d1 = mip_depth - z1;
+
+ memset(refData, 0, bufSize);
+ memset(testData, 0, bufSize);
+
+ switch (target) {
+ case GL_TEXTURE_1D:
+ /*
+ * Get whole image (the reference)
+ */
+ glGetTexImage(GL_TEXTURE_1D, level,
+ GL_RGBA, GL_UNSIGNED_BYTE, refData);
+
+ /*
+ * Now get two sub-regions which should be equivalent
+ * to the whole reference image.
+ */
+
+ /* left part */
+ glPixelStorei(GL_PACK_SKIP_PIXELS, x0);
+ glGetTextureSubImage(tex, level,
+ x0, 0, 0, w0, 1, 1,
+ GL_RGBA, GL_UNSIGNED_BYTE,
+ bufSize, testData);
+ /* right part */
+ glPixelStorei(GL_PACK_SKIP_PIXELS, x1);
+ glGetTextureSubImage(tex, level,
+ x1, 0, 0, w1, 1, 1,
+ GL_RGBA, GL_UNSIGNED_BYTE,
+ bufSize, testData);
+
+ /* defaults */
+ glPixelStorei(GL_PACK_SKIP_PIXELS, 0);
+
+ /* now compare the images */
+ bytes = mip_width * 4;
+ if (memcmp(refData, testData, bytes)) {
+ printf("Failure for GL_TEXTURE_1D:\n");
+ pass = false;
+ }
+ break;
+
+ case GL_TEXTURE_1D_ARRAY:
+ case GL_TEXTURE_2D:
+ case GL_TEXTURE_RECTANGLE:
+ case GL_TEXTURE_CUBE_MAP:
+ glPixelStorei(GL_PACK_SKIP_PIXELS, 0);
+ glPixelStorei(GL_PACK_ROW_LENGTH, mip_width);
+
+ if (target == GL_TEXTURE_CUBE_MAP) {
+ /* only get +Y face */
+ glGetTexImage(GL_TEXTURE_CUBE_MAP_POSITIVE_Y,
+ level, GL_RGBA, GL_UNSIGNED_BYTE,
+ refData);
+ z0 = 2; /* positive Y face */
+ }
+ else {
+ /* Get whole texture */
+ glGetTexImage(target, level,
+ GL_RGBA, GL_UNSIGNED_BYTE,
+ refData);
+ z0 = 0;
+ }
+
+ /*
+ * Now get four sub-regions which should be equivalent
+ * to the whole reference image.
+ */
+
+ /* lower-left */
+ glPixelStorei(GL_PACK_SKIP_PIXELS, x0);
+ glPixelStorei(GL_PACK_SKIP_ROWS, y0);
+ glGetTextureSubImage(tex, level,
+ x0, y0, z0, w0, h0, 1,
+ GL_RGBA, GL_UNSIGNED_BYTE,
+ bufSize, testData);
+ /* lower-right */
+ glPixelStorei(GL_PACK_SKIP_PIXELS, x1);
+ glPixelStorei(GL_PACK_SKIP_ROWS, y0);
+ glGetTextureSubImage(tex, level,
+ x1, y0, z0, w1, h0, 1,
+ GL_RGBA, GL_UNSIGNED_BYTE,
+ bufSize, testData);
+
+ /* upper-left */
+ glPixelStorei(GL_PACK_SKIP_PIXELS, x0);
+ glPixelStorei(GL_PACK_SKIP_ROWS, y1);
+ glGetTextureSubImage(tex, level,
+ x0, y1, z0, w0, h1, 1,
+ GL_RGBA, GL_UNSIGNED_BYTE,
+ bufSize, testData);
+
+ /* upper-right */
+ glPixelStorei(GL_PACK_SKIP_PIXELS, x1);
+ glPixelStorei(GL_PACK_SKIP_ROWS, y1);
+ glGetTextureSubImage(tex, level,
+ x1, y1, z0, w1, h1, 1,
+ GL_RGBA, GL_UNSIGNED_BYTE,
+ bufSize, testData);
+
+ /* defaults */
+ glPixelStorei(GL_PACK_SKIP_PIXELS, 0);
+ glPixelStorei(GL_PACK_SKIP_ROWS, 0);
+
+ /* now compare the images */
+ bytes = mip_width * mip_height * 4;
+ if (memcmp(refData, testData, bytes)) {
+ printf("Failure for %s\n",
+ piglit_get_gl_enum_name(target));
+ pass = false;
+ }
+
+ break;
+
+ case GL_TEXTURE_3D:
+ case GL_TEXTURE_2D_ARRAY:
+ case GL_TEXTURE_CUBE_MAP_ARRAY:
+ glPixelStorei(GL_PACK_ROW_LENGTH, mip_width);
+ glPixelStorei(GL_PACK_IMAGE_HEIGHT, mip_height);
+
+ /*
+ * Get whole image (the reference)
+ */
+ glGetTexImage(target, level,
+ GL_RGBA, GL_UNSIGNED_BYTE, refData);
+
+ /*
+ * Now get four sub-regions which should be equivalent
+ * to the whole reference image.
+ */
+
+ /* front-left block */
+ glPixelStorei(GL_PACK_SKIP_PIXELS, x0);
+ glPixelStorei(GL_PACK_SKIP_ROWS, y0);
+ glPixelStorei(GL_PACK_SKIP_IMAGES, z0);
+ glGetTextureSubImage(tex, level,
+ x0, y0, z0, w0, h0+h1, d0,
+ GL_RGBA, GL_UNSIGNED_BYTE,
+ bufSize, testData);
+ /* front-right block */
+ glPixelStorei(GL_PACK_SKIP_PIXELS, x1);
+ glPixelStorei(GL_PACK_SKIP_ROWS, y0);
+ glPixelStorei(GL_PACK_SKIP_IMAGES, z0);
+ glGetTextureSubImage(tex, level,
+ x1, y0, 0, w1, h0+h1, d0,
+ GL_RGBA, GL_UNSIGNED_BYTE,
+ bufSize, testData);
+
+ /* back-left block */
+ glPixelStorei(GL_PACK_SKIP_PIXELS, x0);
+ glPixelStorei(GL_PACK_SKIP_ROWS, y0);
+ glPixelStorei(GL_PACK_SKIP_IMAGES, z1);
+ glGetTextureSubImage(tex, level,
+ x0, y0, z1, w0, h0+h1, d1,
+ GL_RGBA, GL_UNSIGNED_BYTE,
+ bufSize, testData);
+
+ /* back-right block */
+ glPixelStorei(GL_PACK_SKIP_PIXELS, x1);
+ glPixelStorei(GL_PACK_SKIP_ROWS, y0);
+ glPixelStorei(GL_PACK_SKIP_IMAGES, z1);
+ glGetTextureSubImage(tex, level,
+ x1, y0, z1, w1, h0+h1, d1,
+ GL_RGBA, GL_UNSIGNED_BYTE,
+ bufSize, testData);
+
+ /* defaults */
+ glPixelStorei(GL_PACK_SKIP_PIXELS, 0);
+ glPixelStorei(GL_PACK_SKIP_ROWS, 0);
+ glPixelStorei(GL_PACK_SKIP_IMAGES, 0);
+
+ /* now compare the images */
+ bytes = mip_width * mip_height * mip_depth * 4;
+ if (memcmp(refData, testData, bytes)) {
+ printf("Failure for %s\n",
+ piglit_get_gl_enum_name(target));
+ pass = false;
+ }
+
+ break;
+ }
+
+ /* Should be no GL errors */
+ if (!piglit_check_gl_error(GL_NO_ERROR)) {
+ pass = false;
+ }
+ }
+
+ free(texData);
+ free(refData);
+ free(testData);
+
+ return pass;
+}
+
+
+void
+piglit_init(int argc, char **argv)
+{
+ bool pass = true;
+
+ piglit_require_extension("GL_ARB_get_texture_sub_image");
+
+ /* Test assorted targets, sizes (including NPOT) and internal formats */
+ pass = test_getsubimage(GL_TEXTURE_1D, 64, 1, 1, GL_RGB) && pass;
+
+ pass = test_getsubimage(GL_TEXTURE_2D, 256, 128, 1, GL_RGBA) && pass;
+
+ pass = test_getsubimage(GL_TEXTURE_2D, 30, 40, 1, GL_ALPHA) && pass;
+
+ pass = test_getsubimage(GL_TEXTURE_3D, 8, 4, 16, GL_RGBA) && pass;
+
+ pass = test_getsubimage(GL_TEXTURE_RECTANGLE, 16, 8, 1, GL_RGB) && pass;
+
+ pass = test_getsubimage(GL_TEXTURE_CUBE_MAP, 32, 32, 1, GL_RGB) && pass;
+
+ if (piglit_is_extension_supported("GL_EXT_texture_array")) {
+ pass = test_getsubimage(GL_TEXTURE_1D_ARRAY, 64, 9, 1, GL_ALPHA)
+ && pass;
+ pass = test_getsubimage(GL_TEXTURE_2D_ARRAY, 32, 32, 9, GL_RGBA)
+ && pass;
+ }
+
+ if (piglit_is_extension_supported("GL_ARB_texture_cube_map_array")) {
+ pass = test_getsubimage(GL_TEXTURE_CUBE_MAP_ARRAY,
+ 8, 8, 6, GL_RGBA) && pass;
+ pass = test_getsubimage(GL_TEXTURE_CUBE_MAP_ARRAY,
+ 32, 32, 18, GL_ALPHA) && pass;
+ }
+
+ if (piglit_is_extension_supported("GL_EXT_texture_compression_s3tc")) {
+ pass = test_getsubimage(GL_TEXTURE_2D, 128, 128, 1,
+ GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
+ && pass;
+ }
+
+ piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
+}
+
+
+enum piglit_result
+piglit_display(void)
+{
+ /* never called */
+ return PIGLIT_PASS;
+}
diff --git a/tests/spec/arb_get_texture_sub_image/getcompressed.c b/tests/spec/arb_get_texture_sub_image/getcompressed.c
new file mode 100644
index 0000000..63a722d
--- /dev/null
+++ b/tests/spec/arb_get_texture_sub_image/getcompressed.c
@@ -0,0 +1,340 @@
+/*
+ * Copyright 2015 VMware, 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.
+ */
+
+/**
+ * Test glGetCompressedTextureSubImage() with 2D, 2D array, cubemap, and
+ * cubemap array textures.
+ */
+
+
+#include "piglit-util-gl.h"
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+ config.supports_gl_compat_version = 20;
+ config.window_visual = PIGLIT_GL_VISUAL_RGBA;
+PIGLIT_GL_TEST_CONFIG_END
+
+
+static bool
+test_getsubimage(GLenum target,
+ GLsizei width, GLsizei height, GLsizei numSlices,
+ GLenum intFormat)
+{
+ const GLint bufSize = width * height * 4 * sizeof(GLubyte);
+ GLubyte *texData;
+ GLubyte *refData = malloc(6 * bufSize); /* 6 for cubemaps */
+ GLubyte *testData = malloc(6 * bufSize); /* 6 for cubemaps */
+ GLuint tex;
+ int i, slice, compressedSize, compSize;
+ int blockWidth, blockHeight, blockSize;
+ bool pass = true;
+ const int level = 0;
+ int x0, y0, x1, y1, w0, h0, w1, h1;
+
+ printf("Testing %s %s %d x %d\n",
+ piglit_get_gl_enum_name(target),
+ piglit_get_gl_enum_name(intFormat),
+ width, height);
+
+ /* For all S3TC formats */
+ blockWidth = blockHeight = 4;
+ if (intFormat == GL_COMPRESSED_RGB_S3TC_DXT1_EXT ||
+ intFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) {
+ blockSize = 8;
+ }
+ else {
+ assert(intFormat == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT ||
+ intFormat == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT);
+ blockSize = 16;
+ }
+
+ /* Size must be multiple of block dims */
+ assert(width % blockWidth == 0);
+ assert(height % blockHeight == 0);
+
+ compressedSize = (width / blockWidth) * (height / blockHeight)
+ * blockSize;
+ if (0) {
+ printf("byte per block row: %d\n",
+ (width / blockWidth) * blockSize);
+ printf("compressed image size = %d\n", compressedSize);
+ }
+
+ /* initial texture data */
+ texData = malloc(compressedSize);
+ for (i = 0; i < compressedSize; i++) {
+ texData[i] = (i+10) & 0xff;
+ }
+
+ glGenTextures(1, &tex);
+ glBindTexture(target, tex);
+
+ /* Define texture image */
+ if (target == GL_TEXTURE_CUBE_MAP) {
+ for (slice = 0; slice < 6; slice++) {
+ glCompressedTexImage2D(
+ GL_TEXTURE_CUBE_MAP_POSITIVE_X + slice,
+ level, intFormat, width, height, 0,
+ compressedSize, texData);
+ }
+ glGetTexLevelParameteriv(GL_TEXTURE_CUBE_MAP_POSITIVE_X, level,
+ GL_TEXTURE_COMPRESSED_IMAGE_SIZE,
+ &compSize);
+ assert(numSlices == 6);
+ }
+ else if (target == GL_TEXTURE_CUBE_MAP_ARRAY) {
+ assert(numSlices % 6 == 0);
+ glCompressedTexImage3D(target, level, intFormat,
+ width, height, numSlices, 0,
+ compressedSize * numSlices, NULL);
+ for (slice = 0; slice < numSlices; slice++) {
+ glCompressedTexSubImage3D(target, level,
+ 0, 0, slice,
+ width, height, 1,
+ intFormat,
+ compressedSize, texData);
+ }
+ glGetTexLevelParameteriv(target, level,
+ GL_TEXTURE_COMPRESSED_IMAGE_SIZE,
+ &compSize);
+ compSize /= numSlices;
+ }
+ else if (target == GL_TEXTURE_2D_ARRAY) {
+ glCompressedTexImage3D(target, level, intFormat,
+ width, height, numSlices, 0,
+ compressedSize * numSlices, NULL);
+ for (slice = 0; slice < numSlices; slice++) {
+ glCompressedTexSubImage3D(target, level,
+ 0, 0, slice,
+ width, height, 1,
+ intFormat,
+ compressedSize, texData);
+ }
+ glGetTexLevelParameteriv(target, level,
+ GL_TEXTURE_COMPRESSED_IMAGE_SIZE,
+ &compSize);
+ compSize /= numSlices;
+ }
+ else {
+ assert(target == GL_TEXTURE_2D);
+ glCompressedTexImage2D(target, level, intFormat,
+ width, height, 0,
+ compressedSize, texData);
+ glGetTexLevelParameteriv(target, level,
+ GL_TEXTURE_COMPRESSED_IMAGE_SIZE,
+ &compSize);
+ assert(numSlices == 1);
+ }
+
+ assert(compSize == compressedSize);
+
+ /* Should be no GL errors */
+ if (!piglit_check_gl_error(GL_NO_ERROR)) {
+ pass = false;
+ }
+
+ refData = calloc(1, numSlices * compressedSize);
+ testData = calloc(1, numSlices * compressedSize);
+
+ /* compute pos/size of sub-regions */
+ x0 = 0;
+ y0 = 0;
+ x1 = width / 4; /* quarter width */
+ y1 = height / 2; /* half height */
+
+ /* Position must be multiple of block dims */
+ assert(x1 % blockWidth == 0);
+ assert(y1 % blockHeight == 0);
+
+ w0 = x1 - x0;
+ w1 = width - x1;
+ h0 = y1 - y0;
+ h1 = height - y1;
+
+ /* Sizes must be multiple of block dims */
+ assert(w0 % blockWidth == 0);
+ assert(w1 % blockWidth == 0);
+ assert(h0 % blockHeight == 0);
+ assert(h1 % blockHeight == 0);
+
+ glPixelStorei(GL_PACK_ALIGNMENT, 1);
+ glPixelStorei(GL_PACK_ROW_LENGTH, width);
+ glPixelStorei(GL_PACK_IMAGE_HEIGHT, height);
+ glPixelStorei(GL_PACK_COMPRESSED_BLOCK_WIDTH, blockWidth);
+ glPixelStorei(GL_PACK_COMPRESSED_BLOCK_HEIGHT, blockHeight);
+ glPixelStorei(GL_PACK_COMPRESSED_BLOCK_SIZE, blockSize);
+
+ /* Should be no GL errors */
+ if (!piglit_check_gl_error(GL_NO_ERROR)) {
+ pass = false;
+ }
+
+ /*
+ * Get whole compressed image (the reference)
+ */
+ if (target == GL_TEXTURE_CUBE_MAP) {
+ for (slice = 0; slice < 6; slice++) {
+ glGetCompressedTexImage(
+ GL_TEXTURE_CUBE_MAP_POSITIVE_X + slice,
+ level,
+ refData + slice * compressedSize);
+ }
+ }
+ else {
+ glGetCompressedTexImage(target, level, refData);
+ }
+
+ if (!piglit_check_gl_error(GL_NO_ERROR)) {
+ pass = false;
+ }
+
+ /*
+ * Now get four sub-regions which should be equivalent
+ * to the whole reference image.
+ */
+
+ /* lower-left */
+ glPixelStorei(GL_PACK_SKIP_PIXELS, x0);
+ glPixelStorei(GL_PACK_SKIP_ROWS, y0);
+ glGetCompressedTextureSubImage(tex, level,
+ x0, y0, 0, w0, h0, numSlices,
+ numSlices * compressedSize, testData);
+
+ /* lower-right */
+ glPixelStorei(GL_PACK_SKIP_PIXELS, x1);
+ glPixelStorei(GL_PACK_SKIP_ROWS, y0);
+ glGetCompressedTextureSubImage(tex, level,
+ x1, y0, 0, w1, h0, numSlices,
+ numSlices * compressedSize, testData);
+
+ /* upper-left */
+ glPixelStorei(GL_PACK_SKIP_PIXELS, x0);
+ glPixelStorei(GL_PACK_SKIP_ROWS, y1);
+ glGetCompressedTextureSubImage(tex, level,
+ x0, y1, 0, w0, h1, numSlices,
+ numSlices * compressedSize, testData);
+
+ /* upper-right */
+ glPixelStorei(GL_PACK_SKIP_PIXELS, x1);
+ glPixelStorei(GL_PACK_SKIP_ROWS, y1);
+ glGetCompressedTextureSubImage(tex, level,
+ x1, y1, 0, w1, h1, numSlices,
+ numSlices * compressedSize, testData);
+
+ /* defaults */
+ glPixelStorei(GL_PACK_SKIP_PIXELS, 0);
+ glPixelStorei(GL_PACK_SKIP_ROWS, 0);
+
+ /* Should be no GL errors */
+ if (!piglit_check_gl_error(GL_NO_ERROR)) {
+ pass = false;
+ }
+
+ /* now compare the images */
+ for (slice = 0; slice < numSlices; slice++) {
+ int sliceStart = slice * compressedSize;
+ if (memcmp(refData + sliceStart,
+ testData + sliceStart,
+ compressedSize)) {
+ int i;
+ for (i = 0; i < compressedSize; i++) {
+ if (refData[sliceStart + i] !=
+ testData[sliceStart + i]) {
+ printf("fail in slice/face %d at offset %d\n",
+ slice, i);
+ printf("expected %d, found %d\n",
+ refData[sliceStart + i],
+ testData[sliceStart + i]);
+ break;
+ }
+ }
+ printf("Failure for %s %s\n",
+ piglit_get_gl_enum_name(target),
+ piglit_get_gl_enum_name(intFormat));
+ pass = false;
+ }
+ }
+
+ free(texData);
+ free(refData);
+ free(testData);
+
+ glDeleteTextures(1, &tex);
+
+ return pass;
+}
+
+
+void
+piglit_init(int argc, char **argv)
+{
+ bool pass = true;
+
+ piglit_require_extension("GL_ARB_get_texture_sub_image");
+ piglit_require_extension("GL_ARB_compressed_texture_pixel_storage");
+ piglit_require_extension("GL_EXT_texture_compression_s3tc");
+ piglit_require_extension("GL_ARB_texture_non_power_of_two");
+
+ pass = test_getsubimage(GL_TEXTURE_2D, 256, 128, 1,
+ GL_COMPRESSED_RGB_S3TC_DXT1_EXT) && pass;
+
+ pass = test_getsubimage(GL_TEXTURE_2D, 80, 40, 1,
+ GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) && pass;
+
+ pass = test_getsubimage(GL_TEXTURE_2D, 32, 32, 1,
+ GL_COMPRESSED_RGBA_S3TC_DXT3_EXT) && pass;
+
+ pass = test_getsubimage(GL_TEXTURE_2D, 32, 32, 1,
+ GL_COMPRESSED_RGBA_S3TC_DXT5_EXT) && pass;
+
+ /* NOTE: texture rectangle not supported with S3TC */
+
+ pass = test_getsubimage(GL_TEXTURE_CUBE_MAP, 16, 16, 6,
+ GL_COMPRESSED_RGBA_S3TC_DXT5_EXT) && pass;
+
+ if (piglit_is_extension_supported("GL_EXT_texture_array")) {
+ pass = test_getsubimage(GL_TEXTURE_2D_ARRAY, 16, 32, 10,
+ GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
+ && pass;
+
+ pass = test_getsubimage(GL_TEXTURE_2D_ARRAY, 32, 16, 1,
+ GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
+ && pass;
+ }
+
+ if (piglit_is_extension_supported("GL_ARB_texture_cube_map_array")) {
+ pass = test_getsubimage(GL_TEXTURE_CUBE_MAP_ARRAY, 16, 16, 18,
+ GL_COMPRESSED_RGBA_S3TC_DXT3_EXT)
+ && pass;
+ }
+
+ piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
+}
+
+
+enum piglit_result
+piglit_display(void)
+{
+ /* never called */
+ return PIGLIT_PASS;
+}
--
1.9.1
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