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lol
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debug: refactor quad test.

legacy
Sam Hocevar sam 14 年前
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共有 1 个文件被更改，包括 131 次插入 和 85 次删除
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  1. +131
    -85
      src/debug/quad.cpp

+ 131
- 85
src/debug/quad.cpp 查看文件

@@ -29,7 +29,7 @@ namespace lol
*/

static int const NUM_ARRAYS = 2;
static int const NUM_BUFFERS = 6;
static int const NUM_BUFFERS = 9;
static int const NUM_ATTRS = 6;
static int const NUM_SHADERS = 6;
static int const NUM_TEXTURES = 1;
@@ -45,7 +45,7 @@ private:

int initialised;
float time;
#if !defined __CELLOS_LV2__
#if !defined __CELLOS_LV2__ && !defined ANDROID_NDK
GLuint array[NUM_ARRAYS];
#endif
GLuint buffer[NUM_BUFFERS];
@@ -142,6 +142,14 @@ void DebugQuad::TickDraw(float deltams)
GLfloat const texcoords[] = { f1, f3, f3, f2, f2, f4,
f2, f4, f4, f1, f1, f3 };

/* Cheap iterators */
#if !defined __CELLOS_LV2__ && !defined ANDROID_NDK
GLuint *array = data->array;
#endif
GLuint *buffer = data->buffer;
Shader **shader = data->shader;
GLuint *attr = data->attr;

ResetState();

#if defined HAVE_GLBEGIN || defined USE_GLEW
@@ -167,7 +175,7 @@ void DebugQuad::TickDraw(float deltams)
/*
* Test #2: glBegin + per-vertex coloring
*
* Renders a multicolored square with varying colors.
* Renders a multicoloured square with varying colors.
*/

glBegin(GL_TRIANGLES);
@@ -221,9 +229,8 @@ void DebugQuad::TickDraw(float deltams)
*
* Renders a static, coloured and tiled pattern.
*/
#if !defined __CELLOS_LV2__
if (!data->shader[0])
data->shader[0] = Shader::Create(
if (!shader[0])
shader[0] = Shader::Create(
"#version 110\n"
"void main()"
"{"
@@ -238,7 +245,8 @@ void DebugQuad::TickDraw(float deltams)
" float dz = mod(gl_FragCoord.y * 0.125, 1.0);"
" gl_FragColor = vec4(dx, dy, dz, 1.0);"
"}");
data->shader[0]->Bind();
shader[0]->Bind();
shader++;
glColor3f(0.0f, 1.0f, 1.0f);
glBegin(GL_TRIANGLES);
glVertex3f(data->aa.x, data->bb.y, 0.0f);
@@ -253,17 +261,15 @@ void DebugQuad::TickDraw(float deltams)

Advance();
ResetState();
#endif

/*
* Test #5: glBegin + pass vertex coord from vertex shader to fragment
* shader for use as color information.
*
* Renders a multicolored square with varying colors.
* Renders a multicoloured square with varying colors.
*/
#if !defined __CELLOS_LV2__
if (!data->shader[1])
data->shader[1] = Shader::Create(
if (!shader[0])
shader[0] = Shader::Create(
"#version 110\n"
"varying vec4 pass_Color;"
"void main()"
@@ -281,7 +287,8 @@ void DebugQuad::TickDraw(float deltams)
"{"
" gl_FragColor = pass_Color;"
"}");
data->shader[1]->Bind();
shader[0]->Bind();
shader++;
glColor3f(0.0f, 1.0f, 1.0f);
glBegin(GL_TRIANGLES);
glTexCoord3f(f1, f2, f3);
@@ -301,7 +308,6 @@ void DebugQuad::TickDraw(float deltams)

Advance();
ResetState();
#endif

/*
* Test #6: glBegin + apply texture in fragment shader
@@ -312,9 +318,8 @@ void DebugQuad::TickDraw(float deltams)
* Note: there is no need to glEnable(GL_TEXTURE_2D) when the
* texture lookup is done in a shader.
*/
#if !defined __CELLOS_LV2__
if (!data->shader[2])
data->shader[2] = Shader::Create(
if (!shader[0])
shader[0] = Shader::Create(
"#version 110\n"
"void main()"
"{"
@@ -328,7 +333,8 @@ void DebugQuad::TickDraw(float deltams)
"{"
" gl_FragColor = texture2D(tex, gl_TexCoord[0].xy * 0.25);"
"}");
data->shader[2]->Bind();
shader[0]->Bind();
shader++;
glColor3f(0.0f, 1.0f, 1.0f);
glBindTexture(GL_TEXTURE_2D, data->texture[0]);
glBegin(GL_TRIANGLES);
@@ -351,14 +357,13 @@ void DebugQuad::TickDraw(float deltams)
Advance();
ResetState();
#endif
#endif

#if !defined ANDROID_NDK
/*
* Test #7: vertex buffer + per-vertex coloring
* Test #7: simple vertex buffer
*
* Renders a multicolored square with varying colors.
* Renders an orange square.
*/
#if !defined ANDROID_NDK
GLfloat const vertices1[] = { data->aa.x, data->bb.y, 0.0f,
data->bb.x, data->bb.y, 0.0f,
data->bb.x, data->aa.y, 0.0f,
@@ -366,13 +371,38 @@ void DebugQuad::TickDraw(float deltams)
data->aa.x, data->aa.y, 0.0f,
data->aa.x, data->bb.y, 0.0f };

glEnableClientState(GL_COLOR_ARRAY);
glColor4f(0.8f, 0.5f, 0.2f, 1.0f);
glEnableClientState(GL_VERTEX_ARRAY);

glColorPointer(3, GL_FLOAT, 0, colors);
glVertexPointer(3, GL_FLOAT, 0, vertices1);
glDrawArrays(GL_TRIANGLES, 0, 6);

glDisableClientState(GL_VERTEX_ARRAY);

Advance();
ResetState();
#endif

/*
* Test #8: vertex buffer + per-vertex coloring
*
* Renders a multicoloured square with varying colors.
*/
#if !defined ANDROID_NDK
GLfloat const vertices2[] = { data->aa.x, data->bb.y, 0.0f,
data->bb.x, data->bb.y, 0.0f,
data->bb.x, data->aa.y, 0.0f,
data->bb.x, data->aa.y, 0.0f,
data->aa.x, data->aa.y, 0.0f,
data->aa.x, data->bb.y, 0.0f };

glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_COLOR_ARRAY);

glVertexPointer(3, GL_FLOAT, 0, vertices2);
glColorPointer(3, GL_FLOAT, 0, colors);
glDrawArrays(GL_TRIANGLES, 0, 6);

glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_COLOR_ARRAY);

@@ -381,13 +411,13 @@ void DebugQuad::TickDraw(float deltams)
#endif

/*
* Test #8: vertex buffer + per-vertex coloring + texture
* Test #9: vertex buffer + per-vertex coloring + texture
*
* Renders a multicolored square with varying colors multiplied with an
* Renders a multicoloured square with varying colors multiplied with an
* animated distorted checkerboard.
*/
#if !defined ANDROID_NDK
GLfloat const vertices2[] = { data->aa.x, data->bb.y, 0.0f,
GLfloat const vertices3[] = { data->aa.x, data->bb.y, 0.0f,
data->bb.x, data->bb.y, 0.0f,
data->bb.x, data->aa.y, 0.0f,
data->bb.x, data->aa.y, 0.0f,
@@ -396,18 +426,19 @@ void DebugQuad::TickDraw(float deltams)

glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, data->texture[0]);
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_COLOR_ARRAY);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glEnableClientState(GL_VERTEX_ARRAY);

glVertexPointer(3, GL_FLOAT, 0, vertices3);
glColorPointer(3, GL_FLOAT, 0, colors);
glTexCoordPointer(2, GL_FLOAT, 0, texcoords);
glVertexPointer(3, GL_FLOAT, 0, vertices2);
glDrawArrays(GL_TRIANGLES, 0, 6);

glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glDisableClientState(GL_COLOR_ARRAY);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glDisable(GL_TEXTURE_2D);

Advance();
@@ -415,14 +446,14 @@ void DebugQuad::TickDraw(float deltams)
#endif

/*
* Test #9: vertex buffer + texture & color in 1.10 fragment shader
* Test #10: vertex buffer + texture & color in 1.10 fragment shader
*
* Renders a multicolored square with varying colors xored with an
* Renders a multicoloured square with varying colors xored with an
* animated distorted checkerboard.
*/
#if !defined __CELLOS_LV2__ && !defined ANDROID_NDK
if (!data->shader[3])
data->shader[3] = Shader::Create(
if (!shader[0])
shader[0] = Shader::Create(
"#version 110\n"
"varying vec4 pass_Color;"
"void main()"
@@ -441,8 +472,9 @@ void DebugQuad::TickDraw(float deltams)
" gl_FragColor = vec4(abs(tmp.xyz - pass_Color.xyz), 1.0);"
"}");

data->shader[3]->Bind();
GLfloat const vertices3[] = { data->aa.x, data->bb.y, 0.0f,
shader[0]->Bind();
shader++;
GLfloat const vertices4[] = { data->aa.x, data->bb.y, 0.0f,
data->bb.x, data->bb.y, 0.0f,
data->bb.x, data->aa.y, 0.0f,
data->bb.x, data->aa.y, 0.0f,
@@ -455,7 +487,7 @@ void DebugQuad::TickDraw(float deltams)
glEnableClientState(GL_COLOR_ARRAY);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);

glVertexPointer(3, GL_FLOAT, 0, vertices3);
glVertexPointer(3, GL_FLOAT, 0, vertices4);
glColorPointer(3, GL_FLOAT, 0, colors);
glTexCoordPointer(2, GL_FLOAT, 0, texcoords);
glDrawArrays(GL_TRIANGLES, 0, 6);
@@ -470,15 +502,15 @@ void DebugQuad::TickDraw(float deltams)
#endif

/*
* Test #10: vertex buffer + texture & color in 1.20 fragment shader
* Test #11: vertex buffer + texture & color in 1.20 fragment shader
*
* Renders a multicolored square with varying colors xored with an
* Renders a multicoloured square with varying colors xored with an
* animated distorted checkerboard.
*/
#if !defined __CELLOS_LV2__ && !defined ANDROID_NDK
if (!data->shader[4])
if (!shader[0])
{
data->shader[4] = Shader::Create(
shader[0] = Shader::Create(
"#version 120\n"
"attribute vec3 in_Vertex;"
"attribute vec3 in_Color;"
@@ -499,12 +531,13 @@ void DebugQuad::TickDraw(float deltams)
" vec4 tmp = texture2D(tex, gl_TexCoord[0].xy * 0.25);"
" gl_FragColor = vec4(abs(tmp.xyz - pass_Color.xyz), 1.0);"
"}");
data->attr[0] = data->shader[4]->GetAttribLocation("in_Vertex");
data->attr[1] = data->shader[4]->GetAttribLocation("in_Color");
data->attr[2] = data->shader[4]->GetAttribLocation("in_MultiTexCoord0");
attr[0] = shader[0]->GetAttribLocation("in_Vertex");
attr[1] = shader[0]->GetAttribLocation("in_Color");
attr[2] = shader[0]->GetAttribLocation("in_MultiTexCoord0");
}
data->shader[4]->Bind();
GLfloat const vertices4[] = { data->aa.x, data->bb.y, 0.0f,
shader[0]->Bind();
shader++;
GLfloat const vertices5[] = { data->aa.x, data->bb.y, 0.0f,
data->bb.x, data->bb.y, 0.0f,
data->bb.x, data->aa.y, 0.0f,
data->bb.x, data->aa.y, 0.0f,
@@ -513,32 +546,32 @@ void DebugQuad::TickDraw(float deltams)

glBindTexture(GL_TEXTURE_2D, data->texture[0]);

glBindVertexArray(data->array[0]);
glBindVertexArray(*array++);

glBindBuffer(GL_ARRAY_BUFFER, data->buffer[0]);
glBufferData(GL_ARRAY_BUFFER, sizeof(vertices4), vertices4,
glBindBuffer(GL_ARRAY_BUFFER, *buffer++);
glBufferData(GL_ARRAY_BUFFER, sizeof(vertices5), vertices5,
GL_DYNAMIC_DRAW);
glVertexAttribPointer(data->attr[0], 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(data->attr[0]);
glVertexAttribPointer(attr[0], 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(attr[0]);

glBindBuffer(GL_ARRAY_BUFFER, data->buffer[1]);
glBindBuffer(GL_ARRAY_BUFFER, *buffer++);
glBufferData(GL_ARRAY_BUFFER, sizeof(colors), colors,
GL_DYNAMIC_DRAW);
glVertexAttribPointer(data->attr[1], 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(data->attr[1]);
glVertexAttribPointer(attr[1], 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(attr[1]);

glBindBuffer(GL_ARRAY_BUFFER, data->buffer[2]);
glBindBuffer(GL_ARRAY_BUFFER, *buffer++);
glBufferData(GL_ARRAY_BUFFER, sizeof(texcoords), texcoords,
GL_DYNAMIC_DRAW);
glVertexAttribPointer(data->attr[2], 2, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(data->attr[2]);
glVertexAttribPointer(attr[2], 2, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(attr[2]);

glDrawArrays(GL_TRIANGLES, 0, 6);
glBindVertexArray(0);

glDisableVertexAttribArray(data->attr[0]);
glDisableVertexAttribArray(data->attr[1]);
glDisableVertexAttribArray(data->attr[2]);
glDisableVertexAttribArray(*attr++);
glDisableVertexAttribArray(*attr++);
glDisableVertexAttribArray(*attr++);
glUseProgram(0);

Advance();
@@ -546,15 +579,15 @@ void DebugQuad::TickDraw(float deltams)
#endif

/*
* Test #11: vertex buffer + texture & color in 1.30 fragment shader
* Test #12: vertex buffer + texture & color in 1.30 fragment shader
*
* Renders a multicolored square with varying colors xored with an
* Renders a multicoloured square with varying colors xored with an
* animated distorted checkerboard.
*/
#if !defined __CELLOS_LV2__ && !defined ANDROID_NDK
if (!data->shader[5])
if (!shader[0])
{
data->shader[5] = Shader::Create(
shader[0] = Shader::Create(
"#version 130\n"
"in vec3 in_Vertex;"
"in vec3 in_Color;"
@@ -575,12 +608,13 @@ void DebugQuad::TickDraw(float deltams)
" vec4 tmp = texture2D(tex, gl_TexCoord[0].xy * 0.25);"
" gl_FragColor = vec4(abs(tmp.xyz - pass_Color.xyz), 1.0);"
"}");
data->attr[3] = data->shader[4]->GetAttribLocation("in_Vertex");
data->attr[4] = data->shader[4]->GetAttribLocation("in_Color");
data->attr[5] = data->shader[4]->GetAttribLocation("in_MultiTexCoord0");
attr[0] = shader[0]->GetAttribLocation("in_Vertex");
attr[1] = shader[0]->GetAttribLocation("in_Color");
attr[2] = shader[0]->GetAttribLocation("in_MultiTexCoord0");
}
data->shader[5]->Bind();
GLfloat const vertices5[] = { data->aa.x, data->bb.y, 0.0f,
shader[0]->Bind();
shader++;
GLfloat const vertices6[] = { data->aa.x, data->bb.y, 0.0f,
data->bb.x, data->bb.y, 0.0f,
data->bb.x, data->aa.y, 0.0f,
data->bb.x, data->aa.y, 0.0f,
@@ -589,43 +623,55 @@ void DebugQuad::TickDraw(float deltams)

glBindTexture(GL_TEXTURE_2D, data->texture[0]);

glBindVertexArray(data->array[1]);
glBindVertexArray(*array++);

glBindBuffer(GL_ARRAY_BUFFER, data->buffer[3]);
glBufferData(GL_ARRAY_BUFFER, sizeof(vertices5), vertices5,
glBindBuffer(GL_ARRAY_BUFFER, *buffer++);
glBufferData(GL_ARRAY_BUFFER, sizeof(vertices6), vertices6,
GL_DYNAMIC_DRAW);
glVertexAttribPointer(data->attr[3], 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(data->attr[3]);
glVertexAttribPointer(attr[0], 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(attr[0]);

glBindBuffer(GL_ARRAY_BUFFER, data->buffer[4]);
glBindBuffer(GL_ARRAY_BUFFER, *buffer++);
glBufferData(GL_ARRAY_BUFFER, sizeof(colors), colors,
GL_DYNAMIC_DRAW);
glVertexAttribPointer(data->attr[4], 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(data->attr[4]);
glVertexAttribPointer(attr[1], 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(attr[2]);

glBindBuffer(GL_ARRAY_BUFFER, data->buffer[5]);
glBindBuffer(GL_ARRAY_BUFFER, *buffer++);
glBufferData(GL_ARRAY_BUFFER, sizeof(texcoords), texcoords,
GL_DYNAMIC_DRAW);
glVertexAttribPointer(data->attr[5], 2, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(data->attr[5]);
glVertexAttribPointer(attr[2], 2, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(attr[2]);

glDrawArrays(GL_TRIANGLES, 0, 6);
glBindVertexArray(0);

glDisableVertexAttribArray(data->attr[3]);
glDisableVertexAttribArray(data->attr[4]);
glDisableVertexAttribArray(data->attr[5]);
glDisableVertexAttribArray(*attr++);
glDisableVertexAttribArray(*attr++);
glDisableVertexAttribArray(*attr++);
glUseProgram(0);

Advance();
ResetState();
#endif

/* Check that we didn't overflow our list */
#if !defined __CELLOS_LV2__ && !defined ANDROID_NDK
if (array > data->array + NUM_ARRAYS)
Log::Error("too many arrays used\n");
#endif
if (buffer > data->buffer + NUM_BUFFERS)
Log::Error("too many buffers used\n");
if (shader > data->shader + NUM_SHADERS)
Log::Error("too many shaders used\n");
if (attr > data->attr + NUM_ATTRS)
Log::Error("too many attributes used\n");
}

void DebugQuad::ResetState()
{
/* Reset GL states to something reasonably safe */
#if defined HAVE_GLBEGIN || defined USE_GLEW
#if defined HAVE_GLBEGIN || defined USE_GLEW || defined __CELLOS_LV2__
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glMatrixMode(GL_MODELVIEW);
@@ -634,7 +680,7 @@ void DebugQuad::ResetState()

glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, 0);
#if defined HAVE_GLBEGIN || defined USE_GLEW
#if defined HAVE_GLBEGIN || defined USE_GLEW || defined __CELLOS_LV2__
glClientActiveTexture(GL_TEXTURE0);
#endif
glDisable(GL_TEXTURE_2D);


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