305 lines
9.2 KiB
C
305 lines
9.2 KiB
C
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#include <cogl/cogl.h>
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#include <string.h>
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#include "test-utils.h"
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typedef struct _TestState
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{
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CoglPipeline *pipeline;
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} TestState;
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typedef struct
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{
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gint16 x, y;
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float r, g, b, a;
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} FloatVert;
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typedef struct
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{
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gint16 x, y;
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guint8 r, g, b, a;
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} ByteVert;
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typedef struct
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{
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gint16 x, y;
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} ShortVert;
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static void
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test_float_verts (TestState *state, int offset_x, int offset_y)
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{
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CoglAttribute *attributes[2];
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CoglAttributeBuffer *buffer;
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static const FloatVert float_verts[] =
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{
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{ 0, 10, /**/ 1, 0, 0, 1 },
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{ 10, 10, /**/ 1, 0, 0, 1 },
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{ 5, 0, /**/ 1, 0, 0, 1 },
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{ 10, 10, /**/ 0, 1, 0, 1 },
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{ 20, 10, /**/ 0, 1, 0, 1 },
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{ 15, 0, /**/ 0, 1, 0, 1 }
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};
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buffer = cogl_attribute_buffer_new (sizeof (float_verts), float_verts);
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attributes[0] = cogl_attribute_new (buffer,
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"cogl_position_in",
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sizeof (FloatVert),
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G_STRUCT_OFFSET (FloatVert, x),
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2, /* n_components */
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COGL_ATTRIBUTE_TYPE_SHORT);
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attributes[1] = cogl_attribute_new (buffer,
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"color",
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sizeof (FloatVert),
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G_STRUCT_OFFSET (FloatVert, r),
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4, /* n_components */
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COGL_ATTRIBUTE_TYPE_FLOAT);
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cogl_push_source (state->pipeline);
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cogl_push_matrix ();
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cogl_translate (offset_x, offset_y, 0.0f);
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cogl_draw_attributes (COGL_VERTICES_MODE_TRIANGLES,
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0, /* first_vertex */
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6, /* n_vertices */
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attributes,
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2 /* n_attributes */);
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cogl_pop_matrix ();
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cogl_pop_source ();
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cogl_object_unref (attributes[1]);
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cogl_object_unref (attributes[0]);
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cogl_object_unref (buffer);
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test_utils_check_pixel (offset_x + 5, offset_y + 5, 0xff0000ff);
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test_utils_check_pixel (offset_x + 15, offset_y + 5, 0x00ff00ff);
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}
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static void
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test_byte_verts (TestState *state, int offset_x, int offset_y)
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{
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CoglAttribute *attributes[2];
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CoglAttributeBuffer *buffer, *unnorm_buffer;
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static const ByteVert norm_verts[] =
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{
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{ 0, 10, /**/ 255, 0, 0, 255 },
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{ 10, 10, /**/ 255, 0, 0, 255 },
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{ 5, 0, /**/ 255, 0, 0, 255 },
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{ 10, 10, /**/ 0, 255, 0, 255 },
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{ 20, 10, /**/ 0, 255, 0, 255 },
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{ 15, 0, /**/ 0, 255, 0, 255 }
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};
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static const ByteVert unnorm_verts[] =
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{
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{ 0, 0, /**/ 0, 0, 1, 1 },
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{ 0, 0, /**/ 0, 0, 1, 1 },
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{ 0, 0, /**/ 0, 0, 1, 1 },
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};
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buffer = cogl_attribute_buffer_new (sizeof (norm_verts), norm_verts);
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attributes[0] = cogl_attribute_new (buffer,
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"cogl_position_in",
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sizeof (ByteVert),
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G_STRUCT_OFFSET (ByteVert, x),
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2, /* n_components */
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COGL_ATTRIBUTE_TYPE_SHORT);
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attributes[1] = cogl_attribute_new (buffer,
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"color",
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sizeof (ByteVert),
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G_STRUCT_OFFSET (ByteVert, r),
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4, /* n_components */
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COGL_ATTRIBUTE_TYPE_UNSIGNED_BYTE);
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cogl_attribute_set_normalized (attributes[1], TRUE);
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cogl_push_source (state->pipeline);
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cogl_push_matrix ();
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cogl_translate (offset_x, offset_y, 0.0f);
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cogl_draw_attributes (COGL_VERTICES_MODE_TRIANGLES,
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0, /* first_vertex */
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6, /* n_vertices */
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attributes,
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2 /* n_attributes */);
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cogl_object_unref (attributes[1]);
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/* Test again with unnormalized attributes */
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unnorm_buffer = cogl_attribute_buffer_new (sizeof (unnorm_verts),
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unnorm_verts);
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attributes[1] = cogl_attribute_new (unnorm_buffer,
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"color",
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sizeof (ByteVert),
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G_STRUCT_OFFSET (ByteVert, r),
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4, /* n_components */
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COGL_ATTRIBUTE_TYPE_BYTE);
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cogl_translate (20, 0, 0);
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cogl_draw_attributes (COGL_VERTICES_MODE_TRIANGLES,
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0, /* first_vertex */
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3, /* n_vertices */
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attributes,
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2 /* n_attributes */);
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cogl_pop_matrix ();
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cogl_pop_source ();
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cogl_object_unref (attributes[0]);
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cogl_object_unref (attributes[1]);
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cogl_object_unref (buffer);
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cogl_object_unref (unnorm_buffer);
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test_utils_check_pixel (offset_x + 5, offset_y + 5, 0xff0000ff);
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test_utils_check_pixel (offset_x + 15, offset_y + 5, 0x00ff00ff);
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test_utils_check_pixel (offset_x + 25, offset_y + 5, 0x0000ffff);
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}
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static void
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test_short_verts (TestState *state, int offset_x, int offset_y)
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{
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CoglAttribute *attributes[1];
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CoglAttributeBuffer *buffer;
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CoglPipeline *pipeline, *pipeline2;
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CoglSnippet *snippet;
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static const ShortVert short_verts[] =
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{
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{ -10, -10 },
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{ -1, -10 },
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{ -5, -1 }
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};
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pipeline = cogl_pipeline_new ();
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snippet = cogl_snippet_new (COGL_SNIPPET_HOOK_VERTEX_TRANSFORM,
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"attribute vec2 pos;",
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NULL);
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cogl_snippet_set_replace (snippet,
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"cogl_position_out = "
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"cogl_modelview_projection_matrix * "
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"vec4 (pos, 0.0, 1.0);");
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cogl_pipeline_add_snippet (pipeline, snippet);
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cogl_object_unref (snippet);
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cogl_pipeline_set_color4ub (pipeline, 255, 0, 0, 255);
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buffer = cogl_attribute_buffer_new (sizeof (short_verts), short_verts);
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attributes[0] = cogl_attribute_new (buffer,
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"pos",
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sizeof (ShortVert),
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G_STRUCT_OFFSET (ShortVert, x),
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2, /* n_components */
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COGL_ATTRIBUTE_TYPE_SHORT);
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cogl_push_source (pipeline);
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cogl_push_matrix ();
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cogl_translate (offset_x + 10.0f, offset_y + 10.0f, 0.0f);
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cogl_draw_attributes (COGL_VERTICES_MODE_TRIANGLES,
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0, /* first_vertex */
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3, /* n_vertices */
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attributes,
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1 /* n_attributes */);
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cogl_pop_matrix ();
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cogl_pop_source ();
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cogl_object_unref (attributes[0]);
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/* Test again treating the attribute as unsigned */
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attributes[0] = cogl_attribute_new (buffer,
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"pos",
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sizeof (ShortVert),
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G_STRUCT_OFFSET (ShortVert, x),
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2, /* n_components */
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COGL_ATTRIBUTE_TYPE_UNSIGNED_SHORT);
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pipeline2 = cogl_pipeline_copy (pipeline);
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cogl_pipeline_set_color4ub (pipeline2, 0, 255, 0, 255);
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cogl_push_source (pipeline2);
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cogl_push_matrix ();
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cogl_translate (offset_x + 10.0f - 65525.0f, offset_y - 65525, 0.0f);
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cogl_draw_attributes (COGL_VERTICES_MODE_TRIANGLES,
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0, /* first_vertex */
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3, /* n_vertices */
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attributes,
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1 /* n_attributes */);
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cogl_pop_matrix ();
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cogl_pop_source ();
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cogl_object_unref (attributes[0]);
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cogl_object_unref (pipeline2);
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cogl_object_unref (pipeline);
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cogl_object_unref (buffer);
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test_utils_check_pixel (offset_x + 5, offset_y + 5, 0xff0000ff);
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test_utils_check_pixel (offset_x + 15, offset_y + 5, 0x00ff00ff);
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}
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static void
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paint (TestState *state)
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{
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CoglColor color;
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cogl_color_init_from_4ub (&color, 0, 0, 0, 255);
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cogl_clear (&color, COGL_BUFFER_BIT_COLOR);
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test_float_verts (state, 0, 0);
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test_byte_verts (state, 0, 10);
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test_short_verts (state, 0, 20);
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}
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void
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test_cogl_custom_attributes (TestUtilsGTestFixture *fixture,
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void *user_data)
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{
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TestUtilsSharedState *shared_state = user_data;
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/* If shaders aren't supported then we can't run the test */
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if (cogl_features_available (COGL_FEATURE_SHADERS_GLSL))
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{
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CoglSnippet *snippet;
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TestState state;
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cogl_ortho (/* left, right */
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0, cogl_framebuffer_get_width (shared_state->fb),
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/* bottom, top */
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cogl_framebuffer_get_height (shared_state->fb), 0,
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/* z near, far */
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-1, 100);
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state.pipeline = cogl_pipeline_new ();
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snippet = cogl_snippet_new (COGL_SNIPPET_HOOK_VERTEX,
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"attribute vec4 color;",
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"cogl_color_out = color;");
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cogl_pipeline_add_snippet (state.pipeline, snippet);
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paint (&state);
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cogl_object_unref (state.pipeline);
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cogl_object_unref (snippet);
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if (g_test_verbose ())
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g_print ("OK\n");
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}
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else if (g_test_verbose ())
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g_print ("Skipping\n");
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}
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